4x^3+25x=-20x^2

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Solution for 4x^3+25x=-20x^2 equation:


Simplifying
4x3 + 25x = -20x2

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

Solving
25x + 4x3 = -20x2

Solving for variable 'x'.

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

Combine like terms: -20x2 + 20x2 = 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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