35x^2+6x-36=0

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Solution for 35x^2+6x-36=0 equation:


Simplifying
35x2 + 6x + -36 = 0

Reorder the terms:
-36 + 6x + 35x2 = 0

Solving
-36 + 6x + 35x2 = 0

Solving for variable 'x'.

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

Divide each side by '35'.
-1.028571429 + 0.1714285714x + x2 = 0

Move the constant term to the right:

Add '1.028571429' to each side of the equation.
-1.028571429 + 0.1714285714x + 1.028571429 + x2 = 0 + 1.028571429

Reorder the terms:
-1.028571429 + 1.028571429 + 0.1714285714x + x2 = 0 + 1.028571429

Combine like terms: -1.028571429 + 1.028571429 = 0.000000000
0.000000000 + 0.1714285714x + x2 = 0 + 1.028571429
0.1714285714x + x2 = 0 + 1.028571429

Combine like terms: 0 + 1.028571429 = 1.028571429
0.1714285714x + x2 = 1.028571429

The x term is 0.1714285714x.  Take half its coefficient (0.0857142857).
Square it (0.007346938773) and add it to both sides.

Add '0.007346938773' to each side of the equation.
0.1714285714x + 0.007346938773 + x2 = 1.028571429 + 0.007346938773

Reorder the terms:
0.007346938773 + 0.1714285714x + x2 = 1.028571429 + 0.007346938773

Combine like terms: 1.028571429 + 0.007346938773 = 1.035918367773
0.007346938773 + 0.1714285714x + x2 = 1.035918367773

Factor a perfect square on the left side:
(x + 0.0857142857)(x + 0.0857142857) = 1.035918367773

Calculate the square root of the right side: 1.017800751

Break this problem into two subproblems by setting 
(x + 0.0857142857) equal to 1.017800751 and -1.017800751.

Subproblem 1

x + 0.0857142857 = 1.017800751 Simplifying x + 0.0857142857 = 1.017800751 Reorder the terms: 0.0857142857 + x = 1.017800751 Solving 0.0857142857 + x = 1.017800751 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0857142857' to each side of the equation. 0.0857142857 + -0.0857142857 + x = 1.017800751 + -0.0857142857 Combine like terms: 0.0857142857 + -0.0857142857 = 0.0000000000 0.0000000000 + x = 1.017800751 + -0.0857142857 x = 1.017800751 + -0.0857142857 Combine like terms: 1.017800751 + -0.0857142857 = 0.9320864653 x = 0.9320864653 Simplifying x = 0.9320864653

Subproblem 2

x + 0.0857142857 = -1.017800751 Simplifying x + 0.0857142857 = -1.017800751 Reorder the terms: 0.0857142857 + x = -1.017800751 Solving 0.0857142857 + x = -1.017800751 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0857142857' to each side of the equation. 0.0857142857 + -0.0857142857 + x = -1.017800751 + -0.0857142857 Combine like terms: 0.0857142857 + -0.0857142857 = 0.0000000000 0.0000000000 + x = -1.017800751 + -0.0857142857 x = -1.017800751 + -0.0857142857 Combine like terms: -1.017800751 + -0.0857142857 = -1.1035150367 x = -1.1035150367 Simplifying x = -1.1035150367

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.9320864653, -1.1035150367}

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