v=(28-2x)(20-2x)x

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Solution for v=(28-2x)(20-2x)x equation: 


Simplifying
v = (28 + -2x)(20 + -2x) * x

Reorder the terms for easier multiplication:
v = x(28 + -2x)(20 + -2x)

Multiply (28 + -2x) * (20 + -2x)
v = x(28(20 + -2x) + -2x * (20 + -2x))
v = x((20 * 28 + -2x * 28) + -2x * (20 + -2x))
v = x((560 + -56x) + -2x * (20 + -2x))
v = x(560 + -56x + (20 * -2x + -2x * -2x))
v = x(560 + -56x + (-40x + 4x2))

Combine like terms: -56x + -40x = -96x
v = x(560 + -96x + 4x2)
v = (560 * x + -96x * x + 4x2 * x)
v = (560x + -96x2 + 4x3)

Solving
v = 560x + -96x2 + 4x3

Solving for variable 'v'.

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

Simplifying
v = 560x + -96x2 + 4x3

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