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Envision Math 2.0: Grade 7, Volume 1

EM

Envision Math 2.0: Grade 7, Volume 1 View details

4. Expand Expressions

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Exercise 20 Page 212

Recall the Distributive Property.

- 3y- 8xy

Practice makes perfect

We want to simplify the given expression. To do it, we will use the Distributive Property. We will distribute y to the terms inside the parentheses.

y(- 3 -8x)

Distribute y

y(- 3)+ y(- 8x)

CommutativePropMult

Commutative Property of Multiplication

(- 3)y+ (- 8x)y

Remove parentheses

- 3y- 8xy

Since -3y and 8xy are not like terms, the expression cannot be simplified further.

Subchapter links

Do You Understand? p.210

Do You Know How? p.210

Practice & Problem Solving p.211-212

Assessment Practice p.212