(9x^3-6x^2+5x)+(6x^3+8x^2-13x)=

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Solution for (9x^3-6x^2+5x)+(6x^3+8x^2-13x)= equation:


Simplifying
(9x3 + -6x2 + 5x) + (6x3 + 8x2 + -13x) = 0

Reorder the terms:
(5x + -6x2 + 9x3) + (6x3 + 8x2 + -13x) = 0

Remove parenthesis around (5x + -6x2 + 9x3)
5x + -6x2 + 9x3 + (6x3 + 8x2 + -13x) = 0

Reorder the terms:
5x + -6x2 + 9x3 + (-13x + 8x2 + 6x3) = 0

Remove parenthesis around (-13x + 8x2 + 6x3)
5x + -6x2 + 9x3 + -13x + 8x2 + 6x3 = 0

Reorder the terms:
5x + -13x + -6x2 + 8x2 + 9x3 + 6x3 = 0

Combine like terms: 5x + -13x = -8x
-8x + -6x2 + 8x2 + 9x3 + 6x3 = 0

Combine like terms: -6x2 + 8x2 = 2x2
-8x + 2x2 + 9x3 + 6x3 = 0

Combine like terms: 9x3 + 6x3 = 15x3
-8x + 2x2 + 15x3 = 0

Solving
-8x + 2x2 + 15x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(-8 + 2x + 15x2) = 0

Factor a trinomial.
x((-4 + -5x)(2 + -3x)) = 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 '(-4 + -5x)' equal to zero and attempt to solve: Simplifying -4 + -5x = 0 Solving -4 + -5x = 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 + -5x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -5x = 0 + 4 -5x = 0 + 4 Combine like terms: 0 + 4 = 4 -5x = 4 Divide each side by '-5'. x = -0.8 Simplifying x = -0.8

Subproblem 3

Set the factor '(2 + -3x)' equal to zero and attempt to solve: Simplifying 2 + -3x = 0 Solving 2 + -3x = 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 + -3x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -3x = 0 + -2 -3x = 0 + -2 Combine like terms: 0 + -2 = -2 -3x = -2 Divide each side by '-3'. x = 0.6666666667 Simplifying x = 0.6666666667

Solution

x = {0, -0.8, 0.6666666667}

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