8x^2+6x-6=0

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Solution for 8x^2+6x-6=0 equation:


Simplifying
8x2 + 6x + -6 = 0

Reorder the terms:
-6 + 6x + 8x2 = 0

Solving
-6 + 6x + 8x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-3 + 3x + 4x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-3 + 3x + 4x2)' equal to zero and attempt to solve: Simplifying -3 + 3x + 4x2 = 0 Solving -3 + 3x + 4x2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -0.75 + 0.75x + x2 = 0 Move the constant term to the right: Add '0.75' to each side of the equation. -0.75 + 0.75x + 0.75 + x2 = 0 + 0.75 Reorder the terms: -0.75 + 0.75 + 0.75x + x2 = 0 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + 0.75x + x2 = 0 + 0.75 0.75x + x2 = 0 + 0.75 Combine like terms: 0 + 0.75 = 0.75 0.75x + x2 = 0.75 The x term is 0.75x. Take half its coefficient (0.375). Square it (0.140625) and add it to both sides. Add '0.140625' to each side of the equation. 0.75x + 0.140625 + x2 = 0.75 + 0.140625 Reorder the terms: 0.140625 + 0.75x + x2 = 0.75 + 0.140625 Combine like terms: 0.75 + 0.140625 = 0.890625 0.140625 + 0.75x + x2 = 0.890625 Factor a perfect square on the left side: (x + 0.375)(x + 0.375) = 0.890625 Calculate the square root of the right side: 0.943729304 Break this problem into two subproblems by setting (x + 0.375) equal to 0.943729304 and -0.943729304.

Subproblem 1

x + 0.375 = 0.943729304 Simplifying x + 0.375 = 0.943729304 Reorder the terms: 0.375 + x = 0.943729304 Solving 0.375 + x = 0.943729304 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + x = 0.943729304 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = 0.943729304 + -0.375 x = 0.943729304 + -0.375 Combine like terms: 0.943729304 + -0.375 = 0.568729304 x = 0.568729304 Simplifying x = 0.568729304

Subproblem 2

x + 0.375 = -0.943729304 Simplifying x + 0.375 = -0.943729304 Reorder the terms: 0.375 + x = -0.943729304 Solving 0.375 + x = -0.943729304 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + x = -0.943729304 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = -0.943729304 + -0.375 x = -0.943729304 + -0.375 Combine like terms: -0.943729304 + -0.375 = -1.318729304 x = -1.318729304 Simplifying x = -1.318729304

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.568729304, -1.318729304}

Solution

x = {0.568729304, -1.318729304}

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