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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 13 Page 111

Rewrite each term as - 8 multiplied by some factor.

- 8(4d-7)

Practice makes perfect
Let's rewrite each term as a product of - 8 and some other factor. To do so, note that the product of two negative numbers gives a positive number. 1{\text{-} 32d &= {\color{#FD9000}{\text{-} 8}} \cdot 4 d\\[0.5em] 56 &= {\color{#FD9000}{\text{-} 8}} (\text{-} 7) } Now we can use the Distributive Property to factor the expression. Let's go!
- 32d + 56
SplitIntoFactors

Split into factors

- 8 * 4d + (- 8) (- 7)
FactorOut

Factor out - 8

- 8[4d+(- 7)]
AddNeg

a+(- b)=a-b

- 8(4d-7)
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arrow_right Try It p.110-111
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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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