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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 8 Page 111

Rewrite each term as - 4 multiplied by some factor.

- 4(2k+3)

Practice makes perfect
Let's rewrite each term as a product of - 4 and some other factor. To do so, note that the product of two negative numbers gives a positive number. 1{\text{-} 8k &= {\color{#FD9000}{\text{-} 4}} (2k)\\[0.5em] 12 &= {\color{#FD9000}{\text{-} 4}} (\text{-} 3) } Now we can use the Distributive Property to factor the expression. Let's go!
- 8k-12
SplitIntoFactors

Split into factors

- 4 * 2k-(- 4) (- 3)
FactorOut

Factor out - 4

- 4[2k-(- 3)]
SubNeg

a-(- b)=a+b

- 4(2k+3)
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arrow_right Try It p.110-111
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Try It 2 (Page 110)
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Try It 8 (Page 111)
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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