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The expression 6y^2 - y - 15 can be rewritten as A(y - B)(y - C). Find A + B + C.

 Jun 30, 2021
 #1
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Expand A(y - B)(y - C)

 

A*(y2 - (B+C)y + BC)

 

Ay2 - A(B+C)y + ABC

 

Compare the coefficients with those of  6y2 - y - 15

 

Can you take it from here?

 Jun 30, 2021

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