88x^2-24x-61=0

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Solution for 88x^2-24x-61=0 equation:


Simplifying
88x2 + -24x + -61 = 0

Reorder the terms:
-61 + -24x + 88x2 = 0

Solving
-61 + -24x + 88x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
88 the coefficient of the squared term: 

Divide each side by '88'.
-0.6931818182 + -0.2727272727x + x2 = 0

Move the constant term to the right:

Add '0.6931818182' to each side of the equation.
-0.6931818182 + -0.2727272727x + 0.6931818182 + x2 = 0 + 0.6931818182

Reorder the terms:
-0.6931818182 + 0.6931818182 + -0.2727272727x + x2 = 0 + 0.6931818182

Combine like terms: -0.6931818182 + 0.6931818182 = 0.0000000000
0.0000000000 + -0.2727272727x + x2 = 0 + 0.6931818182
-0.2727272727x + x2 = 0 + 0.6931818182

Combine like terms: 0 + 0.6931818182 = 0.6931818182
-0.2727272727x + x2 = 0.6931818182

The x term is -0.2727272727x.  Take half its coefficient (-0.1363636364).
Square it (0.01859504133) and add it to both sides.

Add '0.01859504133' to each side of the equation.
-0.2727272727x + 0.01859504133 + x2 = 0.6931818182 + 0.01859504133

Reorder the terms:
0.01859504133 + -0.2727272727x + x2 = 0.6931818182 + 0.01859504133

Combine like terms: 0.6931818182 + 0.01859504133 = 0.71177685953
0.01859504133 + -0.2727272727x + x2 = 0.71177685953

Factor a perfect square on the left side:
(x + -0.1363636364)(x + -0.1363636364) = 0.71177685953

Calculate the square root of the right side: 0.843668691

Break this problem into two subproblems by setting 
(x + -0.1363636364) equal to 0.843668691 and -0.843668691.

Subproblem 1

x + -0.1363636364 = 0.843668691 Simplifying x + -0.1363636364 = 0.843668691 Reorder the terms: -0.1363636364 + x = 0.843668691 Solving -0.1363636364 + x = 0.843668691 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1363636364' to each side of the equation. -0.1363636364 + 0.1363636364 + x = 0.843668691 + 0.1363636364 Combine like terms: -0.1363636364 + 0.1363636364 = 0.0000000000 0.0000000000 + x = 0.843668691 + 0.1363636364 x = 0.843668691 + 0.1363636364 Combine like terms: 0.843668691 + 0.1363636364 = 0.9800323274 x = 0.9800323274 Simplifying x = 0.9800323274

Subproblem 2

x + -0.1363636364 = -0.843668691 Simplifying x + -0.1363636364 = -0.843668691 Reorder the terms: -0.1363636364 + x = -0.843668691 Solving -0.1363636364 + x = -0.843668691 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1363636364' to each side of the equation. -0.1363636364 + 0.1363636364 + x = -0.843668691 + 0.1363636364 Combine like terms: -0.1363636364 + 0.1363636364 = 0.0000000000 0.0000000000 + x = -0.843668691 + 0.1363636364 x = -0.843668691 + 0.1363636364 Combine like terms: -0.843668691 + 0.1363636364 = -0.7073050546 x = -0.7073050546 Simplifying x = -0.7073050546

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.9800323274, -0.7073050546}

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