Q. 184.5( 12 Votes )

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Answer :

y2 + 7y – 144


Now, first we have to find out the numbers whose-


Sum = 7 and


Product = - 144


The numbers are 16 and - 9,


So,


y2 + 7y – 144


= y2 + 16y – 9y – 144


= y(y + 16) – 9(y + 16)


= (y + 16)(y – 9)


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