Writing Sums AS PRODUCTS & PRODUCTS as Sums

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Distributive Property

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Presentation transcript:

Writing Sums AS PRODUCTS & PRODUCTS as Sums Engage NY- LESSON 4

Rewrite the expressions as a product of two factors. What can you factor out of both 72 & 8? 8 (9t + 1) 72t + 8 = 8 (9t + 1) What does 8 represent? Greatest Common Factor

Write each sum as a product of two factors Example 3: a) 2 ● 3 + 5 ● 3 = 3 (2 + 5) b) (2 + 5) + (2 + 5) + (2 + 5) = How many (2+5) are there? 3

Write each sum as a product of two factors For some problems, it is just easier to solve and then factor out. 2x + (5 + x ) + 5 ● 2 (2x + x) + 5 + (5 ● 2) 3x + 5 + 10 = 3x + 15 What can you factor out? GCF? 3(x + 5)

Write each sum as a product of two factors 2x + (y + x ) + 2y (2x + x) + (y + 2y) 3x + 3y What can you factor out? GCF? 3(x + y)

Expand each expression & collect like terms Page 16- Example 6- l -a – (a – b) -a – 1 (a – b) Distributive Property (– a – a ) + b Associative Property –2a + b Combine Like Terms