2x+4x^2=26

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Solution for 2x+4x^2=26 equation:


Simplifying
2x + 4x2 = 26

Solving
2x + 4x2 = 26

Solving for variable 'x'.

Reorder the terms:
-26 + 2x + 4x2 = 26 + -26

Combine like terms: 26 + -26 = 0
-26 + 2x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-13 + x + 2x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-13 + x + 2x2)' equal to zero and attempt to solve: Simplifying -13 + x + 2x2 = 0 Solving -13 + x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -6.5 + 0.5x + x2 = 0 Move the constant term to the right: Add '6.5' to each side of the equation. -6.5 + 0.5x + 6.5 + x2 = 0 + 6.5 Reorder the terms: -6.5 + 6.5 + 0.5x + x2 = 0 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + 0.5x + x2 = 0 + 6.5 0.5x + x2 = 0 + 6.5 Combine like terms: 0 + 6.5 = 6.5 0.5x + x2 = 6.5 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. 0.5x + 0.25 + x2 = 6.5 + 0.25 Reorder the terms: 0.25 + 0.5x + x2 = 6.5 + 0.25 Combine like terms: 6.5 + 0.25 = 6.75 0.25 + 0.5x + x2 = 6.75 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 6.75 Calculate the square root of the right side: 2.598076211 Break this problem into two subproblems by setting (x + 0.5) equal to 2.598076211 and -2.598076211.

Subproblem 1

x + 0.5 = 2.598076211 Simplifying x + 0.5 = 2.598076211 Reorder the terms: 0.5 + x = 2.598076211 Solving 0.5 + x = 2.598076211 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 2.598076211 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 2.598076211 + -0.5 x = 2.598076211 + -0.5 Combine like terms: 2.598076211 + -0.5 = 2.098076211 x = 2.098076211 Simplifying x = 2.098076211

Subproblem 2

x + 0.5 = -2.598076211 Simplifying x + 0.5 = -2.598076211 Reorder the terms: 0.5 + x = -2.598076211 Solving 0.5 + x = -2.598076211 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -2.598076211 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -2.598076211 + -0.5 x = -2.598076211 + -0.5 Combine like terms: -2.598076211 + -0.5 = -3.098076211 x = -3.098076211 Simplifying x = -3.098076211

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.098076211, -3.098076211}

Solution

x = {2.098076211, -3.098076211}

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