-9x^3+3x^2-15x=

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Solution for -9x^3+3x^2-15x= equation:


Simplifying
-9x3 + 3x2 + -15x = 0

Reorder the terms:
-15x + 3x2 + -9x3 = 0

Solving
-15x + 3x2 + -9x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x'.
3x(-5 + x + -3x2) = 0

Ignore the factor 3.

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 '(-5 + x + -3x2)' equal to zero and attempt to solve: Simplifying -5 + x + -3x2 = 0 Solving -5 + x + -3x2 = 0 Begin completing the square. Divide all terms by -3 the coefficient of the squared term: Divide each side by '-3'. 1.666666667 + -0.3333333333x + x2 = 0 Move the constant term to the right: Add '-1.666666667' to each side of the equation. 1.666666667 + -0.3333333333x + -1.666666667 + x2 = 0 + -1.666666667 Reorder the terms: 1.666666667 + -1.666666667 + -0.3333333333x + x2 = 0 + -1.666666667 Combine like terms: 1.666666667 + -1.666666667 = 0.000000000 0.000000000 + -0.3333333333x + x2 = 0 + -1.666666667 -0.3333333333x + x2 = 0 + -1.666666667 Combine like terms: 0 + -1.666666667 = -1.666666667 -0.3333333333x + x2 = -1.666666667 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -0.3333333333x + 0.25 + x2 = -1.666666667 + 0.25 Reorder the terms: 0.25 + -0.3333333333x + x2 = -1.666666667 + 0.25 Combine like terms: -1.666666667 + 0.25 = -1.416666667 0.25 + -0.3333333333x + x2 = -1.416666667 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -1.416666667 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Solution

x = {0}

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