0=6x^2+6x-5

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Solution for 0=6x^2+6x-5 equation:


Simplifying
0 = 6x2 + 6x + -5

Reorder the terms:
0 = -5 + 6x + 6x2

Solving
0 = -5 + 6x + 6x2

Solving for variable 'x'.

Combine like terms: 0 + 5 = 5
5 + -6x + -6x2 = -5 + 6x + 6x2 + 5 + -6x + -6x2

Reorder the terms:
5 + -6x + -6x2 = -5 + 5 + 6x + -6x + 6x2 + -6x2

Combine like terms: -5 + 5 = 0
5 + -6x + -6x2 = 0 + 6x + -6x + 6x2 + -6x2
5 + -6x + -6x2 = 6x + -6x + 6x2 + -6x2

Combine like terms: 6x + -6x = 0
5 + -6x + -6x2 = 0 + 6x2 + -6x2
5 + -6x + -6x2 = 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
5 + -6x + -6x2 = 0

Begin completing the square.  Divide all terms by
-6 the coefficient of the squared term: 

Divide each side by '-6'.
-0.8333333333 + x + x2 = 0

Move the constant term to the right:

Add '0.8333333333' to each side of the equation.
-0.8333333333 + x + 0.8333333333 + x2 = 0 + 0.8333333333

Reorder the terms:
-0.8333333333 + 0.8333333333 + x + x2 = 0 + 0.8333333333

Combine like terms: -0.8333333333 + 0.8333333333 = 0.0000000000
0.0000000000 + x + x2 = 0 + 0.8333333333
x + x2 = 0 + 0.8333333333

Combine like terms: 0 + 0.8333333333 = 0.8333333333
x + x2 = 0.8333333333

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + x2 = 0.8333333333 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 0.8333333333 + 0.25

Combine like terms: 0.8333333333 + 0.25 = 1.0833333333
1.25 + x2 = 1.0833333333

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 1.0833333333

Calculate the square root of the right side: 1.040833

Break this problem into two subproblems by setting 
(x + 0.5) equal to 1.040833 and -1.040833.

Subproblem 1

x + 0.5 = 1.040833 Simplifying x + 0.5 = 1.040833 Reorder the terms: 0.5 + x = 1.040833 Solving 0.5 + x = 1.040833 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 1.040833 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 1.040833 + -0.5 x = 1.040833 + -0.5 Combine like terms: 1.040833 + -0.5 = 0.540833 x = 0.540833 Simplifying x = 0.540833

Subproblem 2

x + 0.5 = -1.040833 Simplifying x + 0.5 = -1.040833 Reorder the terms: 0.5 + x = -1.040833 Solving 0.5 + x = -1.040833 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -1.040833 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -1.040833 + -0.5 x = -1.040833 + -0.5 Combine like terms: -1.040833 + -0.5 = -1.540833 x = -1.540833 Simplifying x = -1.540833

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.540833, -1.540833}

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