Find the product using suitable identities . a) (x-3)(x-3) b) (y+2)(y+4)
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(x-3)(x-3)
=(x-3)^2
=x^2-6x+9[Ans]
(y+2)(y+4)
y^2+4y+2y+4*2
=y^2+6y+8[Ans]
Answered by
1
A.By identity- a2+b2-2ab
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