Algebraic Expressions

Front

What are unlike terms?

Back

Unlike terms are terms that have different variables or different powers of the same variable. For example, 123a, 89x, and 98y are unlike terms.

Front

Evaluate the expression 11m for m = 10.

Back

110

Front

What is a variable?

Back

A variable is a symbol that represents a value that can change. It is not fixed.

Front

If z = 31, what is 30 − z?

Back

-1

Front

What are like terms?

Back

Like terms are terms that have the same variable raised to the same power. For example, 11x, 43x, and 560x are like terms.

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

Front

What is a constant in algebra?

Back

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

Front

Simplify the expression 2x + 3x.

Back

5x

Front

What does it mean to evaluate an expression?

Back

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

Front

What is the coefficient in the term 7x?

Back

The coefficient is the numerical factor in a term. In 7x, 7 is the coefficient.