You can put this solution on YOUR website! checkley i think you copied the question wrong....the question was 18+7y-y^2....pls help
thanks again
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SORRY ABOUT THAT MISTAKE.
SOLUTION FOLLOWS:
18+7Y-Y^2
Y^2-7Y-18
(y-9)(y+2)=0
y-9=0
y=9
y+2=0
y=-2
(