4x(x^2-3x)=2x(4x-8)-9x

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Solution for 4x(x^2-3x)=2x(4x-8)-9x equation:


Simplifying
4x(x2 + -3x) = 2x(4x + -8) + -9x

Reorder the terms:
4x(-3x + x2) = 2x(4x + -8) + -9x
(-3x * 4x + x2 * 4x) = 2x(4x + -8) + -9x
(-12x2 + 4x3) = 2x(4x + -8) + -9x

Reorder the terms:
-12x2 + 4x3 = 2x(-8 + 4x) + -9x
-12x2 + 4x3 = (-8 * 2x + 4x * 2x) + -9x
-12x2 + 4x3 = (-16x + 8x2) + -9x

Reorder the terms:
-12x2 + 4x3 = -16x + -9x + 8x2

Combine like terms: -16x + -9x = -25x
-12x2 + 4x3 = -25x + 8x2

Solving
-12x2 + 4x3 = -25x + 8x2

Solving for variable 'x'.

Reorder the terms:
25x + -12x2 + -8x2 + 4x3 = -25x + 8x2 + 25x + -8x2

Combine like terms: -12x2 + -8x2 = -20x2
25x + -20x2 + 4x3 = -25x + 8x2 + 25x + -8x2

Reorder the terms:
25x + -20x2 + 4x3 = -25x + 25x + 8x2 + -8x2

Combine like terms: -25x + 25x = 0
25x + -20x2 + 4x3 = 0 + 8x2 + -8x2
25x + -20x2 + 4x3 = 8x2 + -8x2

Combine like terms: 8x2 + -8x2 = 0
25x + -20x2 + 4x3 = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(25 + -20x + 4x2) = 0

Factor a trinomial.
x((5 + -2x)(5 + -2x)) = 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 '(5 + -2x)' equal to zero and attempt to solve: Simplifying 5 + -2x = 0 Solving 5 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -2x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2x = 0 + -5 -2x = 0 + -5 Combine like terms: 0 + -5 = -5 -2x = -5 Divide each side by '-2'. x = 2.5 Simplifying x = 2.5

Subproblem 3

Set the factor '(5 + -2x)' equal to zero and attempt to solve: Simplifying 5 + -2x = 0 Solving 5 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -2x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2x = 0 + -5 -2x = 0 + -5 Combine like terms: 0 + -5 = -5 -2x = -5 Divide each side by '-2'. x = 2.5 Simplifying x = 2.5

Solution

x = {0, 2.5, 2.5}

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