-72x^2+95x+88=0

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Solution for -72x^2+95x+88=0 equation:


Simplifying
-72x2 + 95x + 88 = 0

Reorder the terms:
88 + 95x + -72x2 = 0

Solving
88 + 95x + -72x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-72 the coefficient of the squared term: 

Divide each side by '-72'.
-1.222222222 + -1.319444444x + x2 = 0

Move the constant term to the right:

Add '1.222222222' to each side of the equation.
-1.222222222 + -1.319444444x + 1.222222222 + x2 = 0 + 1.222222222

Reorder the terms:
-1.222222222 + 1.222222222 + -1.319444444x + x2 = 0 + 1.222222222

Combine like terms: -1.222222222 + 1.222222222 = 0.000000000
0.000000000 + -1.319444444x + x2 = 0 + 1.222222222
-1.319444444x + x2 = 0 + 1.222222222

Combine like terms: 0 + 1.222222222 = 1.222222222
-1.319444444x + x2 = 1.222222222

The x term is -1.319444444x.  Take half its coefficient (-0.659722222).
Square it (0.4352334102) and add it to both sides.

Add '0.4352334102' to each side of the equation.
-1.319444444x + 0.4352334102 + x2 = 1.222222222 + 0.4352334102

Reorder the terms:
0.4352334102 + -1.319444444x + x2 = 1.222222222 + 0.4352334102

Combine like terms: 1.222222222 + 0.4352334102 = 1.6574556322
0.4352334102 + -1.319444444x + x2 = 1.6574556322

Factor a perfect square on the left side:
(x + -0.659722222)(x + -0.659722222) = 1.6574556322

Calculate the square root of the right side: 1.287422088

Break this problem into two subproblems by setting 
(x + -0.659722222) equal to 1.287422088 and -1.287422088.

Subproblem 1

x + -0.659722222 = 1.287422088 Simplifying x + -0.659722222 = 1.287422088 Reorder the terms: -0.659722222 + x = 1.287422088 Solving -0.659722222 + x = 1.287422088 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.659722222' to each side of the equation. -0.659722222 + 0.659722222 + x = 1.287422088 + 0.659722222 Combine like terms: -0.659722222 + 0.659722222 = 0.000000000 0.000000000 + x = 1.287422088 + 0.659722222 x = 1.287422088 + 0.659722222 Combine like terms: 1.287422088 + 0.659722222 = 1.94714431 x = 1.94714431 Simplifying x = 1.94714431

Subproblem 2

x + -0.659722222 = -1.287422088 Simplifying x + -0.659722222 = -1.287422088 Reorder the terms: -0.659722222 + x = -1.287422088 Solving -0.659722222 + x = -1.287422088 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.659722222' to each side of the equation. -0.659722222 + 0.659722222 + x = -1.287422088 + 0.659722222 Combine like terms: -0.659722222 + 0.659722222 = 0.000000000 0.000000000 + x = -1.287422088 + 0.659722222 x = -1.287422088 + 0.659722222 Combine like terms: -1.287422088 + 0.659722222 = -0.627699866 x = -0.627699866 Simplifying x = -0.627699866

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.94714431, -0.627699866}

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