0=15x^2-94x+12

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Solution for 0=15x^2-94x+12 equation:


Simplifying
0 = 15x2 + -94x + 12

Reorder the terms:
0 = 12 + -94x + 15x2

Solving
0 = 12 + -94x + 15x2

Solving for variable 'x'.

Combine like terms: 0 + -12 = -12
-12 + 94x + -15x2 = 12 + -94x + 15x2 + -12 + 94x + -15x2

Reorder the terms:
-12 + 94x + -15x2 = 12 + -12 + -94x + 94x + 15x2 + -15x2

Combine like terms: 12 + -12 = 0
-12 + 94x + -15x2 = 0 + -94x + 94x + 15x2 + -15x2
-12 + 94x + -15x2 = -94x + 94x + 15x2 + -15x2

Combine like terms: -94x + 94x = 0
-12 + 94x + -15x2 = 0 + 15x2 + -15x2
-12 + 94x + -15x2 = 15x2 + -15x2

Combine like terms: 15x2 + -15x2 = 0
-12 + 94x + -15x2 = 0

Begin completing the square.  Divide all terms by
-15 the coefficient of the squared term: 

Divide each side by '-15'.
0.8 + -6.266666667x + x2 = 0

Move the constant term to the right:

Add '-0.8' to each side of the equation.
0.8 + -6.266666667x + -0.8 + x2 = 0 + -0.8

Reorder the terms:
0.8 + -0.8 + -6.266666667x + x2 = 0 + -0.8

Combine like terms: 0.8 + -0.8 = 0.0
0.0 + -6.266666667x + x2 = 0 + -0.8
-6.266666667x + x2 = 0 + -0.8

Combine like terms: 0 + -0.8 = -0.8
-6.266666667x + x2 = -0.8

The x term is -6.266666667x.  Take half its coefficient (-3.133333334).
Square it (9.817777782) and add it to both sides.

Add '9.817777782' to each side of the equation.
-6.266666667x + 9.817777782 + x2 = -0.8 + 9.817777782

Reorder the terms:
9.817777782 + -6.266666667x + x2 = -0.8 + 9.817777782

Combine like terms: -0.8 + 9.817777782 = 9.017777782
9.817777782 + -6.266666667x + x2 = 9.017777782

Factor a perfect square on the left side:
(x + -3.133333334)(x + -3.133333334) = 9.017777782

Calculate the square root of the right side: 3.002961502

Break this problem into two subproblems by setting 
(x + -3.133333334) equal to 3.002961502 and -3.002961502.

Subproblem 1

x + -3.133333334 = 3.002961502 Simplifying x + -3.133333334 = 3.002961502 Reorder the terms: -3.133333334 + x = 3.002961502 Solving -3.133333334 + x = 3.002961502 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.133333334' to each side of the equation. -3.133333334 + 3.133333334 + x = 3.002961502 + 3.133333334 Combine like terms: -3.133333334 + 3.133333334 = 0.000000000 0.000000000 + x = 3.002961502 + 3.133333334 x = 3.002961502 + 3.133333334 Combine like terms: 3.002961502 + 3.133333334 = 6.136294836 x = 6.136294836 Simplifying x = 6.136294836

Subproblem 2

x + -3.133333334 = -3.002961502 Simplifying x + -3.133333334 = -3.002961502 Reorder the terms: -3.133333334 + x = -3.002961502 Solving -3.133333334 + x = -3.002961502 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.133333334' to each side of the equation. -3.133333334 + 3.133333334 + x = -3.002961502 + 3.133333334 Combine like terms: -3.133333334 + 3.133333334 = 0.000000000 0.000000000 + x = -3.002961502 + 3.133333334 x = -3.002961502 + 3.133333334 Combine like terms: -3.002961502 + 3.133333334 = 0.130371832 x = 0.130371832 Simplifying x = 0.130371832

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.136294836, 0.130371832}

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