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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 7 Page 111

Rewrite each term as - 5 multiplied by some factor.

- 5(d-6)

Practice makes perfect
Let's rewrite each term as a product of - 5 and some other factor. To do so, note that the product of two negative numbers gives a positive number. 1{\text{-} 5d &= {\color{#FD9000}{\text{-} 5}} \cdot d\\[0.5em] 30 &= {\color{#FD9000}{\text{-} 5}} \cdot (\text{-} 6) } Now we can use the Distributive Property to factor the expression. Let's go!
- 5d+30
SplitIntoFactors

Split into factors

- 5 * d + (- 5) *(- 6)
FactorOut

Factor out - 5

- 5[d+ (- 6)]
AddNeg

a+(- b)=a-b

- 5(d-6)
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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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