v(x)=x(18-2x)(10-2x)

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Solution for v(x)=x(18-2x)(10-2x) equation: 


Simplifying
v(x) = x(18 + -2x)(10 + -2x)

Multiply v * x
vx = x(18 + -2x)(10 + -2x)

Multiply (18 + -2x) * (10 + -2x)
vx = x(18(10 + -2x) + -2x * (10 + -2x))
vx = x((10 * 18 + -2x * 18) + -2x * (10 + -2x))
vx = x((180 + -36x) + -2x * (10 + -2x))
vx = x(180 + -36x + (10 * -2x + -2x * -2x))
vx = x(180 + -36x + (-20x + 4x2))

Combine like terms: -36x + -20x = -56x
vx = x(180 + -56x + 4x2)
vx = (180 * x + -56x * x + 4x2 * x)
vx = (180x + -56x2 + 4x3)

Solving
vx = 180x + -56x2 + 4x3

Solving for variable 'v'.

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

Divide each side by 'x'.
v = 180 + -56x + 4x2

Simplifying
v = 180 + -56x + 4x2

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