Simplify (0.4x -0.5y)2+(0.4x +0.5y)?
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(0.4x-0.5y)2+(0.4x+0.5y)
0.8x-y+(0.4x+0.5y)
0.8x-y+0.4x+0.5y
1.2x-y+0.5y
1.2x-0.5y
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