Evaluating Algebraic Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. For example, 2x + 3 is an algebraic expression.

Front

Evaluate the expression: 2x + x² for x = 3.

Back

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Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with given numbers.

Front

Evaluate the expression: b² + 4 when b = 3.

Back

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Front

What is a variable in algebra?

Back

A variable is a symbol, usually a letter, that represents an unknown value in an expression or equation.

Front

Evaluate the expression: 4m - 2 for m = 4.

Back

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Front

What is the degree of the polynomial 2x + x²?

Back

The degree of the polynomial is 2, which is the highest exponent of the variable.

Front

Evaluate the expression: 2x + 3 + x² for x = 4.

Back

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Front

What is a constant in an algebraic expression?

Back

A constant is a fixed value that does not change. For example, in the expression 3x + 5, the number 5 is a constant.

Front

Evaluate the expression: 5x + 2 for x = 1.

Back

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