15X^3-10X^2-40X=0

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Solution for 15X^3-10X^2-40X=0 equation:


Simplifying
15X3 + -10X2 + -40X = 0

Reorder the terms:
-40X + -10X2 + 15X3 = 0

Solving
-40X + -10X2 + 15X3 = 0

Solving for variable 'X'.

Factor out the Greatest Common Factor (GCF), '5X'.
5X(-8 + -2X + 3X2) = 0

Factor a trinomial.
5X((-4 + -3X)(2 + -1X)) = 0

Ignore the factor 5.

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 '(-4 + -3X)' equal to zero and attempt to solve: Simplifying -4 + -3X = 0 Solving -4 + -3X = 0 Move all terms containing X to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -3X = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -3X = 0 + 4 -3X = 0 + 4 Combine like terms: 0 + 4 = 4 -3X = 4 Divide each side by '-3'. X = -1.333333333 Simplifying X = -1.333333333

Subproblem 3

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

Solution

X = {0, -1.333333333, 2}

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