36x^2-12x-1=

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Solution for 36x^2-12x-1= equation:


Simplifying
36x2 + -12x + -1 = 0

Reorder the terms:
-1 + -12x + 36x2 = 0

Solving
-1 + -12x + 36x2 = 0

Solving for variable 'x'.

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

Divide each side by '36'.
-0.02777777778 + -0.3333333333x + x2 = 0

Move the constant term to the right:

Add '0.02777777778' to each side of the equation.
-0.02777777778 + -0.3333333333x + 0.02777777778 + x2 = 0 + 0.02777777778

Reorder the terms:
-0.02777777778 + 0.02777777778 + -0.3333333333x + x2 = 0 + 0.02777777778

Combine like terms: -0.02777777778 + 0.02777777778 = 0.00000000000
0.00000000000 + -0.3333333333x + x2 = 0 + 0.02777777778
-0.3333333333x + x2 = 0 + 0.02777777778

Combine like terms: 0 + 0.02777777778 = 0.02777777778
-0.3333333333x + x2 = 0.02777777778

The x term is -0.3333333333x.  Take half its coefficient (-0.1666666667).
Square it (0.02777777779) and add it to both sides.

Add '0.02777777779' to each side of the equation.
-0.3333333333x + 0.02777777779 + x2 = 0.02777777778 + 0.02777777779

Reorder the terms:
0.02777777779 + -0.3333333333x + x2 = 0.02777777778 + 0.02777777779

Combine like terms: 0.02777777778 + 0.02777777779 = 0.05555555557
0.02777777779 + -0.3333333333x + x2 = 0.05555555557

Factor a perfect square on the left side:
(x + -0.1666666667)(x + -0.1666666667) = 0.05555555557

Calculate the square root of the right side: 0.23570226

Break this problem into two subproblems by setting 
(x + -0.1666666667) equal to 0.23570226 and -0.23570226.

Subproblem 1

x + -0.1666666667 = 0.23570226 Simplifying x + -0.1666666667 = 0.23570226 Reorder the terms: -0.1666666667 + x = 0.23570226 Solving -0.1666666667 + x = 0.23570226 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1666666667' to each side of the equation. -0.1666666667 + 0.1666666667 + x = 0.23570226 + 0.1666666667 Combine like terms: -0.1666666667 + 0.1666666667 = 0.0000000000 0.0000000000 + x = 0.23570226 + 0.1666666667 x = 0.23570226 + 0.1666666667 Combine like terms: 0.23570226 + 0.1666666667 = 0.4023689267 x = 0.4023689267 Simplifying x = 0.4023689267

Subproblem 2

x + -0.1666666667 = -0.23570226 Simplifying x + -0.1666666667 = -0.23570226 Reorder the terms: -0.1666666667 + x = -0.23570226 Solving -0.1666666667 + x = -0.23570226 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1666666667' to each side of the equation. -0.1666666667 + 0.1666666667 + x = -0.23570226 + 0.1666666667 Combine like terms: -0.1666666667 + 0.1666666667 = 0.0000000000 0.0000000000 + x = -0.23570226 + 0.1666666667 x = -0.23570226 + 0.1666666667 Combine like terms: -0.23570226 + 0.1666666667 = -0.0690355933 x = -0.0690355933 Simplifying x = -0.0690355933

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.4023689267, -0.0690355933}

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