Module 3 Quiz2 Study Guide

Are 2y and 2x "like" terms?

• yes they both have 2

• no they have different variables

Which of the following have to be the same for terms to be considered "like terms"?

• variable

• coefficient

• variable and exponent

• constant

Simplify the expression: 3x + x + 2x

• 5x

• 6x

• 7x

• 8x

Simplify the expression:

3a + 6b + 9 + 4a + 1

• 7a + 6b + 9 +1

• 7a + 6b + 10

• 7a + 6b

• 10

When I distribute 2(3x + 6)

I am really just ________________ everything inside the parenthesis by 2.

• adding

• subtracting

• dividing

• multiplying

Distribute: 8(3x + 2)

• 24x + 2

• 3x + 16

• 40x

• 24x + 16

Distribute: 5(-3x - 5)

• -15x -25

• 15x + 25

• -15x + 5

• 40x

The inverse of addition is ___________________.

• addition

• subtraction

• multiplication

• division

The inverse of subtraction is ___________________.

• addition

• subtraction

• multiplication

• division

The inverse of multiplication is _________________.

• addition

• subtraction

• multiplication

• division