Laws of Exponents Quiz

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Questions and Answers

What is another name for exponents?

  • Multiplicands
  • Powers (correct)
  • Subtractors
  • Divisors

What does 82 mean?

  • 8 to the power 3
  • 16 to the power 3
  • 8 to the power 1
  • 8 to the power 2 (correct)

What does x0 equal to?

  • 2
  • x
  • 0
  • 1 (correct)

What happens to a number when the exponent is negative?

<p>It becomes smaller (A)</p> Signup and view all the answers

Which of the following is NOT one of the Laws of Exponents?

<p>$x^0 = 0$ (A)</p> Signup and view all the answers

What is the key to understanding the Laws of Exponents?

<p>Writing all the letters down (D)</p> Signup and view all the answers

When applying the law (xm)n = xmn, how many times do we end up multiplying 'x'?

<p>m × n times (C)</p> Signup and view all the answers

According to the law (xy)n = xnyn, what does (xy)3 equal to?

<p>xxxyyy (C)</p> Signup and view all the answers

What is the result of x2/x2 according to the law xm/xn = xm-n?

<p>x0 (D)</p> Signup and view all the answers

In the law xm/n = n√xm = (n√x )m, what does x(mn) equal to?

<p>(xm)1/n (C)</p> Signup and view all the answers

According to the law (x/y)n = xn/yn, what is the result of (x/y)3?

<p>(xxx)/(yyy) (B)</p> Signup and view all the answers

What is the value of x1/n where n is a positive integer?

<p>The nth root of x (B)</p> Signup and view all the answers

When simplifying x(mn) using the law x(mn) = x(m × 1/n), what is the result?

<p>(xm)1/n (A)</p> Signup and view all the answers

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Study Notes

Exponents

  • Exponents are also known as indices or powers.

Exponent Notation

  • The notation 82 means 8 raised to the power of 2, or 8 squared.
  • Any number raised to the power of 0 equals 1.

Negative Exponents

  • When a number has a negative exponent, it becomes a reciprocal (i.e., 1 divided by the number).

Laws of Exponents

  • The key to understanding the Laws of Exponents is to recognize that exponents are a shorthand for repeated multiplication.
  • One of the Laws of Exponents is not "x^m × x^n = x^(m+n+c)", where c is a constant.

Power of a Power

  • When applying the law (xm)n = xmn, we end up multiplying 'x' mn times.

Product of Powers

  • According to the law (xy)n = xnyn, (xy)3 equals to x3y3.

Quotient of Powers

  • The result of x2/x2 according to the law xm/xn = xm-n is 1 (since 2-2 = 0).

Power of a Product

  • In the law xm/n = n√xm = (n√x)m, x(mn) equals to (n√x)m.
  • According to the law (x/y)n = xn/yn, the result of (x/y)3 is x3/y3.

Fractional Exponents

  • The value of x1/n, where n is a positive integer, is the nth root of x.

Simplifying Exponents

  • When simplifying x(mn) using the law x(mn) = x(m × 1/n), the result is x(m/n).

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