3x^3=5x^2+2x

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Solution for 3x^3=5x^2+2x equation:


Simplifying
3x3 = 5x2 + 2x

Reorder the terms:
3x3 = 2x + 5x2

Solving
3x3 = 2x + 5x2

Solving for variable 'x'.

Reorder the terms:
-2x + -5x2 + 3x3 = 2x + 5x2 + -2x + -5x2

Reorder the terms:
-2x + -5x2 + 3x3 = 2x + -2x + 5x2 + -5x2

Combine like terms: 2x + -2x = 0
-2x + -5x2 + 3x3 = 0 + 5x2 + -5x2
-2x + -5x2 + 3x3 = 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
-2x + -5x2 + 3x3 = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(-2 + -5x + 3x2) = 0

Factor a trinomial.
x((-1 + -3x)(2 + -1x)) = 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 '(-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

Subproblem 3

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 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 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {0, -0.3333333333, 2}

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