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Glencoe Math: Course 2, Volume 2 View details

8. Factor Linear Expressions

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Exercise 38 Page 422

Find the product of the common prime factors.

5(8x+3)

Practice makes perfect

To use the Distributive Property in reverse, we have to find the greatest common factor (GCF) between the terms. 40x&=2 * 2 * 2 * 5 * x 15&= 3 * 5 In this case, the GCF is the only common prime factor, 5. Let's factor out the GCF for our expression.

40x+15

Rewrite

Rewrite 40x as 5 * 8x

5 * 8x+15

Rewrite

Rewrite 15 as 5 * 3

5 * 8x+5 * 3

FactorOut

Factor out 5

5(8x+3)