12x^2+58x=125

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Solution for 12x^2+58x=125 equation:


Simplifying
12x2 + 58x = 125

Reorder the terms:
58x + 12x2 = 125

Solving
58x + 12x2 = 125

Solving for variable 'x'.

Reorder the terms:
-125 + 58x + 12x2 = 125 + -125

Combine like terms: 125 + -125 = 0
-125 + 58x + 12x2 = 0

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

Divide each side by '12'.
-10.41666667 + 4.833333333x + x2 = 0

Move the constant term to the right:

Add '10.41666667' to each side of the equation.
-10.41666667 + 4.833333333x + 10.41666667 + x2 = 0 + 10.41666667

Reorder the terms:
-10.41666667 + 10.41666667 + 4.833333333x + x2 = 0 + 10.41666667

Combine like terms: -10.41666667 + 10.41666667 = 0.00000000
0.00000000 + 4.833333333x + x2 = 0 + 10.41666667
4.833333333x + x2 = 0 + 10.41666667

Combine like terms: 0 + 10.41666667 = 10.41666667
4.833333333x + x2 = 10.41666667

The x term is 4.833333333x.  Take half its coefficient (2.416666667).
Square it (5.840277779) and add it to both sides.

Add '5.840277779' to each side of the equation.
4.833333333x + 5.840277779 + x2 = 10.41666667 + 5.840277779

Reorder the terms:
5.840277779 + 4.833333333x + x2 = 10.41666667 + 5.840277779

Combine like terms: 10.41666667 + 5.840277779 = 16.256944449
5.840277779 + 4.833333333x + x2 = 16.256944449

Factor a perfect square on the left side:
(x + 2.416666667)(x + 2.416666667) = 16.256944449

Calculate the square root of the right side: 4.031990135

Break this problem into two subproblems by setting 
(x + 2.416666667) equal to 4.031990135 and -4.031990135.

Subproblem 1

x + 2.416666667 = 4.031990135 Simplifying x + 2.416666667 = 4.031990135 Reorder the terms: 2.416666667 + x = 4.031990135 Solving 2.416666667 + x = 4.031990135 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.416666667' to each side of the equation. 2.416666667 + -2.416666667 + x = 4.031990135 + -2.416666667 Combine like terms: 2.416666667 + -2.416666667 = 0.000000000 0.000000000 + x = 4.031990135 + -2.416666667 x = 4.031990135 + -2.416666667 Combine like terms: 4.031990135 + -2.416666667 = 1.615323468 x = 1.615323468 Simplifying x = 1.615323468

Subproblem 2

x + 2.416666667 = -4.031990135 Simplifying x + 2.416666667 = -4.031990135 Reorder the terms: 2.416666667 + x = -4.031990135 Solving 2.416666667 + x = -4.031990135 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.416666667' to each side of the equation. 2.416666667 + -2.416666667 + x = -4.031990135 + -2.416666667 Combine like terms: 2.416666667 + -2.416666667 = 0.000000000 0.000000000 + x = -4.031990135 + -2.416666667 x = -4.031990135 + -2.416666667 Combine like terms: -4.031990135 + -2.416666667 = -6.448656802 x = -6.448656802 Simplifying x = -6.448656802

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.615323468, -6.448656802}

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