Question

formula of 2(x^2+y^2)​

Answer 1

Answer: 2(x^2+y^2) = (x+y)^2+(x-y)^2

Answer 2

Explanation:

2(x^2+y^2) (given)

we know that

(x+y)^2=x^2+y^2+2xy

=here,2(x^2+y^2)

=2{(x+y)^2-2xy}

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