x^3=-10x^2-9x

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Solution for x^3=-10x^2-9x equation:


Simplifying
x3 = -10x2 + -9x

Reorder the terms:
x3 = -9x + -10x2

Solving
x3 = -9x + -10x2

Solving for variable 'x'.

Reorder the terms:
9x + 10x2 + x3 = -9x + -10x2 + 9x + 10x2

Reorder the terms:
9x + 10x2 + x3 = -9x + 9x + -10x2 + 10x2

Combine like terms: -9x + 9x = 0
9x + 10x2 + x3 = 0 + -10x2 + 10x2
9x + 10x2 + x3 = -10x2 + 10x2

Combine like terms: -10x2 + 10x2 = 0
9x + 10x2 + x3 = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(9 + 10x + x2) = 0

Factor a trinomial.
x((9 + x)(1 + x)) = 0

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 '(9 + x)' equal to zero and attempt to solve: Simplifying 9 + x = 0 Solving 9 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + x = 0 + -9 x = 0 + -9 Combine like terms: 0 + -9 = -9 x = -9 Simplifying x = -9

Subproblem 3

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

Solution

x = {0, -9, -1}

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