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Questions and Answers
What is an algebraic expression?
What is an algebraic expression?
- A method to solve linear equations
- A statement that says two things are equal
- A phrase that uses variables, numbers, and operations to convey a value (correct)
- A formula to calculate the area of a triangle
What is the variable in the expression 2x + 5?
What is the variable in the expression 2x + 5?
- x (correct)
- 2
- +
- 5
What is the coefficient in the expression 3y - 2?
What is the coefficient in the expression 3y - 2?
- y
- -2
- 3y
- 3 (correct)
What is the term in the expression 4x^2 + 2x - 3?
What is the term in the expression 4x^2 + 2x - 3?
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What is the degree of the expression 2x^3 + 5x^2 - x?
What is the degree of the expression 2x^3 + 5x^2 - x?
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Study Notes
Algebraic Expressions
- An algebraic expression is a mathematical phrase that combines variables, constants, and mathematical operations.
Variables and Coefficients
- In the expression 2x + 5, the variable is x, which represents a value that can change.
- In the expression 3y - 2, the coefficient is 3, which is a numerical value that multiplies the variable y.
Terms in Algebraic Expressions
- In the expression 4x^2 + 2x - 3, each part separated by a plus or minus sign is a term (e.g., 4x^2, 2x, -3).
Degree of an Algebraic Expression
- The degree of the expression 2x^3 + 5x^2 - x is 3, which is the highest power of the variable x.
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