2x^3+4x=11x^2

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Solution for 2x^3+4x=11x^2 equation:


Simplifying
2x3 + 4x = 11x2

Reorder the terms:
4x + 2x3 = 11x2

Solving
4x + 2x3 = 11x2

Solving for variable 'x'.

Reorder the terms:
4x + -11x2 + 2x3 = 11x2 + -11x2

Combine like terms: 11x2 + -11x2 = 0
4x + -11x2 + 2x3 = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(4 + -11x + 2x2) = 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 + -11x + 2x2)' equal to zero and attempt to solve: Simplifying 4 + -11x + 2x2 = 0 Solving 4 + -11x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 2 + -5.5x + x2 = 0 Move the constant term to the right: Add '-2' to each side of the equation. 2 + -5.5x + -2 + x2 = 0 + -2 Reorder the terms: 2 + -2 + -5.5x + x2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -5.5x + x2 = 0 + -2 -5.5x + x2 = 0 + -2 Combine like terms: 0 + -2 = -2 -5.5x + x2 = -2 The x term is -5.5x. Take half its coefficient (-2.75). Square it (7.5625) and add it to both sides. Add '7.5625' to each side of the equation. -5.5x + 7.5625 + x2 = -2 + 7.5625 Reorder the terms: 7.5625 + -5.5x + x2 = -2 + 7.5625 Combine like terms: -2 + 7.5625 = 5.5625 7.5625 + -5.5x + x2 = 5.5625 Factor a perfect square on the left side: (x + -2.75)(x + -2.75) = 5.5625 Calculate the square root of the right side: 2.358495283 Break this problem into two subproblems by setting (x + -2.75) equal to 2.358495283 and -2.358495283.

Subproblem 1

x + -2.75 = 2.358495283 Simplifying x + -2.75 = 2.358495283 Reorder the terms: -2.75 + x = 2.358495283 Solving -2.75 + x = 2.358495283 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + x = 2.358495283 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + x = 2.358495283 + 2.75 x = 2.358495283 + 2.75 Combine like terms: 2.358495283 + 2.75 = 5.108495283 x = 5.108495283 Simplifying x = 5.108495283

Subproblem 2

x + -2.75 = -2.358495283 Simplifying x + -2.75 = -2.358495283 Reorder the terms: -2.75 + x = -2.358495283 Solving -2.75 + x = -2.358495283 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + x = -2.358495283 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + x = -2.358495283 + 2.75 x = -2.358495283 + 2.75 Combine like terms: -2.358495283 + 2.75 = 0.391504717 x = 0.391504717 Simplifying x = 0.391504717

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.108495283, 0.391504717}

Solution

x = {0, 5.108495283, 0.391504717}

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