6x^2+5=12x

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Solution for 6x^2+5=12x equation:


Simplifying
6x2 + 5 = 12x

Reorder the terms:
5 + 6x2 = 12x

Solving
5 + 6x2 = 12x

Solving for variable 'x'.

Reorder the terms:
5 + -12x + 6x2 = 12x + -12x

Combine like terms: 12x + -12x = 0
5 + -12x + 6x2 = 0

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

Divide each side by '6'.
0.8333333333 + -2x + x2 = 0

Move the constant term to the right:

Add '-0.8333333333' to each side of the equation.
0.8333333333 + -2x + -0.8333333333 + x2 = 0 + -0.8333333333

Reorder the terms:
0.8333333333 + -0.8333333333 + -2x + x2 = 0 + -0.8333333333

Combine like terms: 0.8333333333 + -0.8333333333 = 0.0000000000
0.0000000000 + -2x + x2 = 0 + -0.8333333333
-2x + x2 = 0 + -0.8333333333

Combine like terms: 0 + -0.8333333333 = -0.8333333333
-2x + x2 = -0.8333333333

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = -0.8333333333 + 1

Reorder the terms:
1 + -2x + x2 = -0.8333333333 + 1

Combine like terms: -0.8333333333 + 1 = 0.1666666667
1 + -2x + x2 = 0.1666666667

Factor a perfect square on the left side:
(x + -1)(x + -1) = 0.1666666667

Calculate the square root of the right side: 0.408248291

Break this problem into two subproblems by setting 
(x + -1) equal to 0.408248291 and -0.408248291.

Subproblem 1

x + -1 = 0.408248291 Simplifying x + -1 = 0.408248291 Reorder the terms: -1 + x = 0.408248291 Solving -1 + x = 0.408248291 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 0.408248291 + 1 Combine like terms: -1 + 1 = 0 0 + x = 0.408248291 + 1 x = 0.408248291 + 1 Combine like terms: 0.408248291 + 1 = 1.408248291 x = 1.408248291 Simplifying x = 1.408248291

Subproblem 2

x + -1 = -0.408248291 Simplifying x + -1 = -0.408248291 Reorder the terms: -1 + x = -0.408248291 Solving -1 + x = -0.408248291 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -0.408248291 + 1 Combine like terms: -1 + 1 = 0 0 + x = -0.408248291 + 1 x = -0.408248291 + 1 Combine like terms: -0.408248291 + 1 = 0.591751709 x = 0.591751709 Simplifying x = 0.591751709

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.408248291, 0.591751709}

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