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Simplify each of the following: (4x+2y)...

Simplify each of the following: `(4x+2y)^2+(4x-2y)^2`
`(4x+2y)^3-(4x-2y)^2`

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"1)`(4x+2y)^2+(4x-2y)^2`
`=2[(4x)^2+(2y)^2]`
`=32x^2+8y^2`
2)`(4x+2y)^3-(4x-2y)^2=64x^3+8y^3+48xy^2+96x^2y-16x^2-4y^2+16xy`
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