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Big Ideas Math: Modeling Real Life, Grade 7
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Big Ideas Math: Modeling Real Life, Grade 7 View details
4. Factorizing Expressions
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Exercise 21 Page 113

Rewrite each term as a product of its prime factors to find the greatest common factor (GCF) between the terms.

4(9a+4b)

Practice makes perfect
To factor the expression, we have to find the greatest common factor (GCF) between the terms. Let's then rewrite each term as a product of its prime factors. 36a&= 2* 2 * 3 * 3 * a 16b&= 2* 2 * 2 * 2 * b In this case, the GCF is 2 * 2 = 4. We are going to rewrite each term as 4 multiplied by some factor. Then we will use the Distributive Property to factor the expression. Let's go!
36a+16b
SplitIntoFactors

Split into factors

4 * 9a+ 4 * 4b
FactorOut

Factor out 4

4(9a+4b)
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arrow_right Try It p.110-111
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Try It 2 (Page 110)
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arrow_right Self-Assessment for Concept & Skills p.111
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arrow_right Self-Assessment for Problem Solving p.112
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arrow_right Review & Refresh p.113
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arrow_right Concept, Skills, & Problem Solving p.113-114
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