Question

class9 maths chapter 2.......Factories this problem
$25 - ( {y}^{2} + 4y + 4)$


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Answer 1

Answer:

25-{y^2+4y+4}=25-(y^2+2y+2y+2^2)=25-{y(y+2)+2(y+2)}=25-(y+2)(y+2)=5^2-(y+2)^2=(5-y-2)(5+y+2)=(3-y)(7+y)