(x2-4xy-y2)(x-2y)where(x=3,y=2)
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answer is : 11.......
vivo1726:
actually answer is 19....
I did mistake in the process
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{(3×2)-(4×3×2)-(2×2)}×{3-(2×2)}
= (6-24-4)×(3-4)
=(-22)×(-1)
=22
no it is x square not X x 2
X into 2
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