23x^2+6x-120=0

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Solution for 23x^2+6x-120=0 equation:


Simplifying
23x2 + 6x + -120 = 0

Reorder the terms:
-120 + 6x + 23x2 = 0

Solving
-120 + 6x + 23x2 = 0

Solving for variable 'x'.

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

Divide each side by '23'.
-5.217391304 + 0.2608695652x + x2 = 0

Move the constant term to the right:

Add '5.217391304' to each side of the equation.
-5.217391304 + 0.2608695652x + 5.217391304 + x2 = 0 + 5.217391304

Reorder the terms:
-5.217391304 + 5.217391304 + 0.2608695652x + x2 = 0 + 5.217391304

Combine like terms: -5.217391304 + 5.217391304 = 0.000000000
0.000000000 + 0.2608695652x + x2 = 0 + 5.217391304
0.2608695652x + x2 = 0 + 5.217391304

Combine like terms: 0 + 5.217391304 = 5.217391304
0.2608695652x + x2 = 5.217391304

The x term is 0.2608695652x.  Take half its coefficient (0.1304347826).
Square it (0.01701323251) and add it to both sides.

Add '0.01701323251' to each side of the equation.
0.2608695652x + 0.01701323251 + x2 = 5.217391304 + 0.01701323251

Reorder the terms:
0.01701323251 + 0.2608695652x + x2 = 5.217391304 + 0.01701323251

Combine like terms: 5.217391304 + 0.01701323251 = 5.23440453651
0.01701323251 + 0.2608695652x + x2 = 5.23440453651

Factor a perfect square on the left side:
(x + 0.1304347826)(x + 0.1304347826) = 5.23440453651

Calculate the square root of the right side: 2.287882107

Break this problem into two subproblems by setting 
(x + 0.1304347826) equal to 2.287882107 and -2.287882107.

Subproblem 1

x + 0.1304347826 = 2.287882107 Simplifying x + 0.1304347826 = 2.287882107 Reorder the terms: 0.1304347826 + x = 2.287882107 Solving 0.1304347826 + x = 2.287882107 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1304347826' to each side of the equation. 0.1304347826 + -0.1304347826 + x = 2.287882107 + -0.1304347826 Combine like terms: 0.1304347826 + -0.1304347826 = 0.0000000000 0.0000000000 + x = 2.287882107 + -0.1304347826 x = 2.287882107 + -0.1304347826 Combine like terms: 2.287882107 + -0.1304347826 = 2.1574473244 x = 2.1574473244 Simplifying x = 2.1574473244

Subproblem 2

x + 0.1304347826 = -2.287882107 Simplifying x + 0.1304347826 = -2.287882107 Reorder the terms: 0.1304347826 + x = -2.287882107 Solving 0.1304347826 + x = -2.287882107 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1304347826' to each side of the equation. 0.1304347826 + -0.1304347826 + x = -2.287882107 + -0.1304347826 Combine like terms: 0.1304347826 + -0.1304347826 = 0.0000000000 0.0000000000 + x = -2.287882107 + -0.1304347826 x = -2.287882107 + -0.1304347826 Combine like terms: -2.287882107 + -0.1304347826 = -2.4183168896 x = -2.4183168896 Simplifying x = -2.4183168896

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.1574473244, -2.4183168896}

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