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(c-4)(3c+9)

Guest Jul 11, 2017
 #1
avatar+87333 
+2

(c-4)(3c+9)

 

Distribute  the terms in the first set of parentheses over the terms in the second set of parentheses

 

c (3c + 9)   -  4 (3c + 9)

 

3c^2 + 9c - 12c - 36    combine like terms

 

3c^2 - 3c  - 36

 

 

cool cool cool

CPhill  Jul 11, 2017
 #2
avatar+7155 
+1

That's a neat way to do " FOIL " ing !!

hectictar  Jul 12, 2017

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