(9x^3-x)(3x^2+2x)=(9x^3-4x)(3x^2+x)

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Solution for (9x^3-x)(3x^2+2x)=(9x^3-4x)(3x^2+x) equation:


Simplifying
(9x3 + -1x)(3x2 + 2x) = (9x3 + -4x)(3x2 + x)

Reorder the terms:
(-1x + 9x3)(3x2 + 2x) = (9x3 + -4x)(3x2 + x)

Reorder the terms:
(-1x + 9x3)(2x + 3x2) = (9x3 + -4x)(3x2 + x)

Multiply (-1x + 9x3) * (2x + 3x2)
(-1x * (2x + 3x2) + 9x3 * (2x + 3x2)) = (9x3 + -4x)(3x2 + x)
((2x * -1x + 3x2 * -1x) + 9x3 * (2x + 3x2)) = (9x3 + -4x)(3x2 + x)
((-2x2 + -3x3) + 9x3 * (2x + 3x2)) = (9x3 + -4x)(3x2 + x)
(-2x2 + -3x3 + (2x * 9x3 + 3x2 * 9x3)) = (9x3 + -4x)(3x2 + x)
(-2x2 + -3x3 + (18x4 + 27x5)) = (9x3 + -4x)(3x2 + x)
(-2x2 + -3x3 + 18x4 + 27x5) = (9x3 + -4x)(3x2 + x)

Reorder the terms:
-2x2 + -3x3 + 18x4 + 27x5 = (-4x + 9x3)(3x2 + x)

Reorder the terms:
-2x2 + -3x3 + 18x4 + 27x5 = (-4x + 9x3)(x + 3x2)

Multiply (-4x + 9x3) * (x + 3x2)
-2x2 + -3x3 + 18x4 + 27x5 = (-4x * (x + 3x2) + 9x3 * (x + 3x2))
-2x2 + -3x3 + 18x4 + 27x5 = ((x * -4x + 3x2 * -4x) + 9x3 * (x + 3x2))
-2x2 + -3x3 + 18x4 + 27x5 = ((-4x2 + -12x3) + 9x3 * (x + 3x2))
-2x2 + -3x3 + 18x4 + 27x5 = (-4x2 + -12x3 + (x * 9x3 + 3x2 * 9x3))
-2x2 + -3x3 + 18x4 + 27x5 = (-4x2 + -12x3 + (9x4 + 27x5))
-2x2 + -3x3 + 18x4 + 27x5 = (-4x2 + -12x3 + 9x4 + 27x5)

Add '-27x5' to each side of the equation.
-2x2 + -3x3 + 18x4 + 27x5 + -27x5 = -4x2 + -12x3 + 9x4 + 27x5 + -27x5

Combine like terms: 27x5 + -27x5 = 0
-2x2 + -3x3 + 18x4 + 0 = -4x2 + -12x3 + 9x4 + 27x5 + -27x5
-2x2 + -3x3 + 18x4 = -4x2 + -12x3 + 9x4 + 27x5 + -27x5

Combine like terms: 27x5 + -27x5 = 0
-2x2 + -3x3 + 18x4 = -4x2 + -12x3 + 9x4 + 0
-2x2 + -3x3 + 18x4 = -4x2 + -12x3 + 9x4

Solving
-2x2 + -3x3 + 18x4 = -4x2 + -12x3 + 9x4

Solving for variable 'x'.

Reorder the terms:
-2x2 + 4x2 + -3x3 + 12x3 + 18x4 + -9x4 = -4x2 + -12x3 + 9x4 + 4x2 + 12x3 + -9x4

Combine like terms: -2x2 + 4x2 = 2x2
2x2 + -3x3 + 12x3 + 18x4 + -9x4 = -4x2 + -12x3 + 9x4 + 4x2 + 12x3 + -9x4

Combine like terms: -3x3 + 12x3 = 9x3
2x2 + 9x3 + 18x4 + -9x4 = -4x2 + -12x3 + 9x4 + 4x2 + 12x3 + -9x4

Combine like terms: 18x4 + -9x4 = 9x4
2x2 + 9x3 + 9x4 = -4x2 + -12x3 + 9x4 + 4x2 + 12x3 + -9x4

Reorder the terms:
2x2 + 9x3 + 9x4 = -4x2 + 4x2 + -12x3 + 12x3 + 9x4 + -9x4

Combine like terms: -4x2 + 4x2 = 0
2x2 + 9x3 + 9x4 = 0 + -12x3 + 12x3 + 9x4 + -9x4
2x2 + 9x3 + 9x4 = -12x3 + 12x3 + 9x4 + -9x4

Combine like terms: -12x3 + 12x3 = 0
2x2 + 9x3 + 9x4 = 0 + 9x4 + -9x4
2x2 + 9x3 + 9x4 = 9x4 + -9x4

Combine like terms: 9x4 + -9x4 = 0
2x2 + 9x3 + 9x4 = 0

Factor out the Greatest Common Factor (GCF), 'x2'.
x2(2 + 9x + 9x2) = 0

Factor a trinomial.
x2((2 + 3x)(1 + 3x)) = 0

Subproblem 1

Set the factor 'x2' equal to zero and attempt to solve: Simplifying x2 = 0 Solving x2 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x2 = 0 Take the square root of each side: x = {0}

Subproblem 2

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

Subproblem 3

Set the factor '(1 + 3x)' equal to zero and attempt to solve: Simplifying 1 + 3x = 0 Solving 1 + 3x = 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 + 3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3x = 0 + -1 3x = 0 + -1 Combine like terms: 0 + -1 = -1 3x = -1 Divide each side by '3'. x = -0.3333333333 Simplifying x = -0.3333333333

Solution

x = {0, -0.6666666667, -0.3333333333}

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