v(x)=(x)(5-2x)(9-2x)

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Solution for v(x)=(x)(5-2x)(9-2x) equation: 


Simplifying
v(x) = (x)(5 + -2x)(9 + -2x)

Multiply v * x
vx = (x)(5 + -2x)(9 + -2x)

Multiply (5 + -2x) * (9 + -2x)
vx = x(5(9 + -2x) + -2x * (9 + -2x))
vx = x((9 * 5 + -2x * 5) + -2x * (9 + -2x))
vx = x((45 + -10x) + -2x * (9 + -2x))
vx = x(45 + -10x + (9 * -2x + -2x * -2x))
vx = x(45 + -10x + (-18x + 4x2))

Combine like terms: -10x + -18x = -28x
vx = x(45 + -28x + 4x2)
vx = (45 * x + -28x * x + 4x2 * x)
vx = (45x + -28x2 + 4x3)

Solving
vx = 45x + -28x2 + 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 = 45 + -28x + 4x2

Simplifying
v = 45 + -28x + 4x2

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