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

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Solution for y=(x+2)(4-2x) equation: 


Simplifying
y = (x + 2)(4 + -2x)

Reorder the terms:
y = (2 + x)(4 + -2x)

Multiply (2 + x) * (4 + -2x)
y = (2(4 + -2x) + x(4 + -2x))
y = ((4 * 2 + -2x * 2) + x(4 + -2x))
y = ((8 + -4x) + x(4 + -2x))
y = (8 + -4x + (4 * x + -2x * x))
y = (8 + -4x + (4x + -2x2))

Combine like terms: -4x + 4x = 0
y = (8 + 0 + -2x2)
y = (8 + -2x2)

Solving
y = 8 + -2x2

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Simplifying
y = 8 + -2x2

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