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Glencoe Math: Course 2, Volume 2

GM

Glencoe Math: Course 2, Volume 2 View details

8. Factor Linear Expressions

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Exercise 31 Page 421

Each side of a square is 14 of the perimeter.

(2x+5) inches.

Practice makes perfect

We know that square scrapbooking page has a perimeter of (8x+20) inches. We want to find the length of one side of this page. Since a square has 4 sides of equal length, each side is 14 of the perimeter. Therefore, let's multiply the perimeter by 14 and simplify the result to find the side length. We will distribute 14 into the parentheses as a first step.

1/4 (8x+20)

Distribute 1/4

1/4 * 8x + 1/4 * 20

MoveRightFacToNumOne

1/b* a = a/b

8x/4 + 20/4

Calculate quotient

2x + 5

One side of the page has a length of (2x+5) inches.

Subchapter links

Guided Practice p.418

Independent Practice p.419-420

H.O.T. Problems p.420

Standardized Test Practice p.420-422

Extra Practice p.421

Common Core Review p.422