Question

Simplify
(x - 2y)^2 + (2x - y)^2​

Answer 1

Step-by-step explanation:

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Answer 2

(x+2y)

2

−4(2x−y)

2

=(x+2y) 2 −(2(2x−y)) 2

=(x+2y) 2 −(4x−2y) 2

is of the form a 2 −b 2

=(a−b)(a+b)

=(x+2y−4x+2y)(x+2y+4x−2y)

=(−3x+4y)(5x)

=5x(4y−3x)