=x(60-2x)(30-2x)

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Solution for =x(60-2x)(30-2x) equation:


Simplifying
0 = x(60 + -2x)(30 + -2x)

Multiply (60 + -2x) * (30 + -2x)
0 = x(60(30 + -2x) + -2x * (30 + -2x))
0 = x((30 * 60 + -2x * 60) + -2x * (30 + -2x))
0 = x((1800 + -120x) + -2x * (30 + -2x))
0 = x(1800 + -120x + (30 * -2x + -2x * -2x))
0 = x(1800 + -120x + (-60x + 4x2))

Combine like terms: -120x + -60x = -180x
0 = x(1800 + -180x + 4x2)
0 = (1800 * x + -180x * x + 4x2 * x)
0 = (1800x + -180x2 + 4x3)

Solving
0 = 1800x + -180x2 + 4x3

Solving for variable 'x'.
Remove the zero:
-1800x + 180x2 + -4x3 = 1800x + -180x2 + 4x3 + -1800x + 180x2 + -4x3

Reorder the terms:
-1800x + 180x2 + -4x3 = 1800x + -1800x + -180x2 + 180x2 + 4x3 + -4x3

Combine like terms: 1800x + -1800x = 0
-1800x + 180x2 + -4x3 = 0 + -180x2 + 180x2 + 4x3 + -4x3
-1800x + 180x2 + -4x3 = -180x2 + 180x2 + 4x3 + -4x3

Combine like terms: -180x2 + 180x2 = 0
-1800x + 180x2 + -4x3 = 0 + 4x3 + -4x3
-1800x + 180x2 + -4x3 = 4x3 + -4x3

Combine like terms: 4x3 + -4x3 = 0
-1800x + 180x2 + -4x3 = 0

Factor out the Greatest Common Factor (GCF), '4x'.
4x(-450 + 45x + -1x2) = 0

Factor a trinomial.
4x((-30 + x)(15 + -1x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(-30 + x)' equal to zero and attempt to solve: Simplifying -30 + x = 0 Solving -30 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '30' to each side of the equation. -30 + 30 + x = 0 + 30 Combine like terms: -30 + 30 = 0 0 + x = 0 + 30 x = 0 + 30 Combine like terms: 0 + 30 = 30 x = 30 Simplifying x = 30

Subproblem 3

Set the factor '(15 + -1x)' equal to zero and attempt to solve: Simplifying 15 + -1x = 0 Solving 15 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + -1x = 0 + -15 Combine like terms: 15 + -15 = 0 0 + -1x = 0 + -15 -1x = 0 + -15 Combine like terms: 0 + -15 = -15 -1x = -15 Divide each side by '-1'. x = 15 Simplifying x = 15

Solution

x = {0, 30, 15}

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