Question

( 4x+2y)square +(4x-2y)square

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Answer 1

Answer:

This math will be solved by 2(a²+b²) formula.

(a+b)² + ( a-b)²= 2(a²+b²).

I think now you can easily solve it

Answer 2

$(a + b)^{2} = a^{2} + b^{2} + 2ab$

(4x+2y)^2= 4x^2