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Compute(y+3)(2y+5)  if y is a solution to 2y^2+11y+50

 Mar 8, 2020
 #1
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By "y is a solution to 2y^2+11y+50"​,  do you mean 2y^2+11y+50=0 ?

 

If so,

 

Expand (y+3)(2y+5)

 

2y^2 + 11y + 15

 

Since 2y^2+11y+50=0, we subtract 35 from both sides.

 

We get 2y^2 + 11y + 15 = -35

 

So the answer is -35?

 Mar 8, 2020

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