find the following squares using identity. 1)(0.2x-0.5y)*2
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Answer:
0.04x^2+0.25y^2-0.20xy is the answer
Step-by-step explanation:
by using identity (a-b) ^2=a^2+b^2+2ab
we get (0.2x)^2+(0.5y)^2-2×0.2x×0.5y
=0.04x^2+0.25y^2-0.20xy
hope it helps you
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