0=-2x^3+24x^2-72x

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Solution for 0=-2x^3+24x^2-72x equation:


Simplifying
0 = -2x3 + 24x2 + -72x

Reorder the terms:
0 = -72x + 24x2 + -2x3

Solving
0 = -72x + 24x2 + -2x3

Solving for variable 'x'.
Remove the zero:
72x + -24x2 + 2x3 = -72x + 24x2 + -2x3 + 72x + -24x2 + 2x3

Reorder the terms:
72x + -24x2 + 2x3 = -72x + 72x + 24x2 + -24x2 + -2x3 + 2x3

Combine like terms: -72x + 72x = 0
72x + -24x2 + 2x3 = 0 + 24x2 + -24x2 + -2x3 + 2x3
72x + -24x2 + 2x3 = 24x2 + -24x2 + -2x3 + 2x3

Combine like terms: 24x2 + -24x2 = 0
72x + -24x2 + 2x3 = 0 + -2x3 + 2x3
72x + -24x2 + 2x3 = -2x3 + 2x3

Combine like terms: -2x3 + 2x3 = 0
72x + -24x2 + 2x3 = 0

Factor out the Greatest Common Factor (GCF), '2x'.
2x(36 + -12x + x2) = 0

Factor a trinomial.
2x((6 + -1x)(6 + -1x)) = 0

Ignore the factor 2.

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 '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Subproblem 3

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {0, 6, 6}

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