(2x^3)-(4x^2)-(30x)=0

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Solution for (2x^3)-(4x^2)-(30x)=0 equation:


Simplifying
(2x3) + -1(4x2) + -1(30x) = 0

Remove parenthesis around (4x2)
(2x3) + -1 * 4x2 + -1(30x) = 0

Multiply -1 * 4
(2x3) + -4x2 + -1(30x) = 0

Remove parenthesis around (30x)
(2x3) + -4x2 + -1 * 30x = 0

Multiply -1 * 30
(2x3) + -4x2 + -30x = 0

Reorder the terms:
-30x + -4x2 + (2x3) = 0

Solving
-30x + -4x2 + (2x3) = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2x'.
2x(-15 + -2x + x2) = 0

Factor a trinomial.
2x((-3 + -1x)(5 + -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 '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x = 0 + 3 -1x = 0 + 3 Combine like terms: 0 + 3 = 3 -1x = 3 Divide each side by '-1'. x = -3 Simplifying x = -3

Subproblem 3

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {0, -3, 5}

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