SOLUTION: please solve by factoring. y^2-4y=45

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Question 187002: please solve by factoring.

y^2-4y=45
Answer by user_dude2008(1862) About Me  (Show Source):
You can put this solution on YOUR website!
y^2-4y=45


y^2-4y-45=0


(y-9)(y+5)=0


y-9=0 or y+5=0


Ans: y=9 or y=-5