-a2-2ab+ b2 = (a-b)2= (2x-5)2= (2x-5) (2x-5)爾-a2-b? = (α + b) (a-b) – InterviewSolution

1.	-a2-2ab+ b2 = (a-b)2= (2x-5)2= (2x-5) (2x-5)爾-a2-b? = (α + b) (a-b)= (X + 3) (x-3)X2-9 = 0(x + 3) (x-3)= 0
Answer» x^2-3^2= (x+3)(x-3)अतः शून्यक होंगेx= 3 and -3

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