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0 votes
3.6k views
in Mathematics by (10.8k points)
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1 Answer

+1 vote
by (49.9k points)
edited by
 
Best answer

(y + 4)(y - 3)

Using (y + a)(y + b) = y2 + (a+b)y + ab

putting a = 4, b = -3

= y2 + (4 - 3)y + (4)(-3)

= y2 + y - 12 

by (10.8k points)
+1
i think it should be y in the answer..

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