Polynomials and Exponents Quiz
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Questions and Answers

What is the meaning of the term 'polynomial'?

A polynomial is an expression that is composed of variables, constants, and exponents, that are combined using mathematical operations.

Match the following properties of exponents with their definitions.

Product property of exponents = To multiply exponential terms with the same base, keep the common base and add the exponents. Power property of exponents = To raise an exponential expression to a power, keep the same base and multiply the exponents. Product to a power property = The power property can easily be extended to include more than one factor within the parentheses. Quotient to a power property = We can also raise a quotient of exponential terms to a power. Quotient property of exponents = To divide two exponential expressions with the same base, keep the common base and subtract the exponent of the denominator from the exponent of the numerator. Zero exponent property = Any base raised to the exponent of zero is equal to 1. Property of negative exponents = If the exponent of the denominator is greater than the exponent in the numerator, the quotient property yields a negative exponent.

Adding polynomials simply involves the use of the commutative and associative properties only.

True

A binomial is a term using only whole number exponents on variables, with no variables in the denominator.

<p>True</p> Signup and view all the answers

The FOIL method stands for 'First, Outer, Inner, Last,' and is used to divide two binomials.

<p>False</p> Signup and view all the answers

The square of a binomial (a+b)² will be a²+2ab-b² if expanded.

<p>False</p> Signup and view all the answers

What is the sum of (14y² + 6y – 4) + (3y² + 8y + 5)?

<p>17y² + 14y + 1</p> Signup and view all the answers

What is the result of subtracting (7x² - 14) from (8x² + 3x - 19)?

<p>x² + 3x - 5</p> Signup and view all the answers

What is the product of 4x² and (2x² - 3x + 5)?

<p>8x⁴ - 12x³ + 20x²</p> Signup and view all the answers

What is the expansion of (x+8)(x+9)?

<p>x² + 17x + 72</p> Signup and view all the answers

What is the product of (4x+3) and (2x-5) using the FOIL method?

<p>8x² - 14x - 15</p> Signup and view all the answers

Factor the binomial 4x² + 28x.

<p>4x(x+7)</p> Signup and view all the answers

Factor the binomial 8x⁴ - 40x².

<p>8x²(x²-5)</p> Signup and view all the answers

Factor the expression x³ + 2x² - 5x - 10 by grouping.

<p>(x+2)(x²-5)</p> Signup and view all the answers

Factor the trinomial x² - 9x + 20.

<p>(x-4)(x-5)</p> Signup and view all the answers

A rational expression is in simplest form or lowest terms when the numerator and denominator have no common factors (other than 1).

<p>Writing a Rational Expression in Simplest Form</p> Signup and view all the answers

A rational number is one that can be written as the quotient of two integers. Similarly, a rational expression is one that can be written as the quotient of two polynomials.

<p>Rational Expression</p> Signup and view all the answers

The quotient of two rational expressions is computed in the same way.

<p>Multiplication of Rational Expressions</p> Signup and view all the answers

In many fields of study, formulas and literal equations involve rational expressions, and we often need to rewrite them for various reasons. Why?

<p>Simplifying Formulas and Literal Equations</p> Signup and view all the answers

Recall that the addition and subtraction of fractions requires finding the lowest common denominator (LCD) and building equivalent fractions. What operation involves this?

<p>Addition and Subtraction of Rational Expressions</p> Signup and view all the answers

Operations on rational expressions use the factoring skills reviewed earlier, along with much of what we know about rational numbers. Which operation incorporates these concepts?

<p>Multiplication and Division of Rational Expressions</p> Signup and view all the answers

The expression as a whole is called the major fraction, and any fraction occurring in a numerator or denominator is referred to as a minor fraction. What is this process called?

<p>Simplifying Compound Rational Expressions</p> Signup and view all the answers

What are the three steps of multiplication and division of rational expressions?

<p>Factor all numerators and denominators completely.</p> Signup and view all the answers

Square roots and cube roots come from a much larger family called radical expressions. Expressions containing radicals can be found in virtually every field of mathematical study, and are an invaluable tool for modeling many real world phenomena. Why are they so important?

<p>Properties of Radicals and Simplifying Radical Expression</p> Signup and view all the answers

In section r.1, the square root of a is b only if b² = a. All numbers greater than zero have two square roots, one positive and one negative. The positive root is also called the principal square root. What is this concept related to?

<p>Radical and Rational Expressions</p> Signup and view all the answers

As an alternative to radical notation, a rational (fractional) exponent is often used, along with the power property of exponents. What does this alternative representation enable?

<p>Radical Expression and Rational Exponents</p> Signup and view all the answers

The properties used to simplify radical expressions are closely connected to the properties of exponents. Why is this connection important?

<p>Properties of Radicals and Simplifying Radical Expression</p> Signup and view all the answers

The multiplication of radical expressions is simply an extension of our earlier work with the product property of radicals. When is this multiplication particularly useful?

<p>Multiplication and Division of Radical Expression</p> Signup and view all the answers

A right triangle is one that has a right angle. The longest side (opposite the right angle) is called the hypotenuse while the other two sides are simply called "legs." What does this relate to?

<p>Formulas and Literal Equations</p> Signup and view all the answers

Can also be established using exponential properties, in much the same way as the product property. What concept is this referring to?

<p>Adding and Subtracting Radical Expression</p> Signup and view all the answers

Refers to combining expressions that contain square roots (or other roots). To do this, you must ensure the radicands (the numbers under the radicals) are the same, similar to combining like terms. What is this process called?

<p>Adding and Subtracting Radical Expression</p> Signup and view all the answers

A mathematical statement that expresses the equality between two linear expressions.

<p>Linear equations</p> Signup and view all the answers

Is an expression that shows the relationship between two expressions using inequality signs (>, <, ≥, or ≤).

<p>Linear inequalities</p> Signup and view all the answers

It is another common form of a linear equation.

<p>Slope-intercept form</p> Signup and view all the answers

The property says, “If the product of any two (or more) factors is equal to zero, then at least one of the factors must be equal to zero.”

<p>Zero property</p> Signup and view all the answers

It is the sum of a real number and an imaginary number.

<p>Complex number</p> Signup and view all the answers

Study Notes

Polynomials and Exponents

  • Polynomials are expressions composed of variables, constants, and exponents, combined using mathematical operations
  • A polynomial is defined as an expression composed of variables, constants, and exponents, combined using mathematical operations.
  • The power property: Raising an exponential expression to a power keeps the same base and multiplies the exponents.
  • The product property: Multiplying exponential terms with the same base results in keeping the same base and adding the exponents.
  • The quotient property: Dividing exponential expressions with the same base involves keeping the same base and subtracting the exponent of the denominator from the numerator
  • If an exponent of a denominator is greater than the exponent in the numerator, the quotient property yields a negative exponent.
  • Any base raised to the power of zero equals 1 (zero exponent property)
  • Polynomial addition involves using the commutative and associative properties
  • A binomial is a term using only whole number exponents on variables, with no variables in the denominator
  • FOIL method is used for multiplying two binomials (First, Outer, Inner, Last)
  • The square of a binomial (a+b)² when expanded equals a² + 2ab + b².

Operations on Polynomials

  • Combining like terms in polynomials involves addition or subtraction of terms with identical variables and exponents
  • Multiplication of a polynomial by a monomial involves applying the distributive property
  • Multiplying a polynomial by a binomial involves distributing each term of one polynomial to every term of the other.
  • Solving polynomial equations using the FOIL method involves multiplying the First, Outer, Inner, and Last terms of two binomials before combining like terms.
  • Factoring polynomials involves finding the greatest common factor (GCF) and expressing the polynomial as a product of its factors
  • Factoring binomials involves expressing the binomial as a product of its factors

Rational Expressions

  • A rational expression is in simplest form when its numerator and denominator have no common factors (other than 1).
  • Multiplication and division of rational expressions use factoring and reducing common factors.
  • Rational number can be written as a quotient of two integers. A rational expression can be written as a quotient of two polynomials.

Radical Expressions

  • Radical expressions involve square roots, cube roots, and other roots
  • Simplify radical expressions by applying the multiplication and division properties of radicals.
  • Radical expressions are used to model various mathematical phenomena. The properties of radicals are closely connected to the properties of exponents.
  • The multiplication of radical expressions extends the product property of radicals.

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Test your understanding of polynomials and exponents with this quiz. Explore properties like the power, product, and quotient along with polynomial addition techniques. Ideal for students learning algebra concepts in class.

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