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 33 Page 113

Rewrite each term as a product of the coefficient of the variable term and some other factor.

3/8(z+8/3)

Practice makes perfect
We want to factor out the coefficient of the variable term — 38. Let's rewrite each term as a product of 38 and some other factor. To do so, we need to think of a number that gives 1 when multiplied by 38. We can find it by dividing 1 by 38. 1 = 3/8 * ? ⇔ 1 ÷ 38 = ? The quotient equals 83, which means that 1 is 38 times 83. Now we can write each term as a product of two factors. 1{\dfrac{3}{8}z &= {\color{#FD9000}{\dfrac{3}{8}}} \cdot z \\[0.5em] 1 &= {\color{#FD9000}{\dfrac{3}{8}}} \cdot \dfrac{8}{3}} Finally, we will use the Distributive Property to factor the expression. Let's go!
3/8z +1
3/8 * z +3/8 * 8/3
3/8(z+8/3)