v=x(42-2x)(29.7-2x)

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Solution for v=x(42-2x)(29.7-2x) equation: 


Simplifying
v = x(42 + -2x)(29.7 + -2x)

Multiply (42 + -2x) * (29.7 + -2x)
v = x(42(29.7 + -2x) + -2x * (29.7 + -2x))
v = x((29.7 * 42 + -2x * 42) + -2x * (29.7 + -2x))
v = x((1247.4 + -84x) + -2x * (29.7 + -2x))
v = x(1247.4 + -84x + (29.7 * -2x + -2x * -2x))
v = x(1247.4 + -84x + (-59.4x + 4x2))

Combine like terms: -84x + -59.4x = -143.4x
v = x(1247.4 + -143.4x + 4x2)
v = (1247.4 * x + -143.4x * x + 4x2 * x)
v = (1247.4x + -143.4x2 + 4x3)

Solving
v = 1247.4x + -143.4x2 + 4x3

Solving for variable 'v'.

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

Simplifying
v = 1247.4x + -143.4x2 + 4x3

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