59x^2-13x-30=0

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Solution for 59x^2-13x-30=0 equation:


Simplifying
59x2 + -13x + -30 = 0

Reorder the terms:
-30 + -13x + 59x2 = 0

Solving
-30 + -13x + 59x2 = 0

Solving for variable 'x'.

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

Divide each side by '59'.
-0.5084745763 + -0.2203389831x + x2 = 0

Move the constant term to the right:

Add '0.5084745763' to each side of the equation.
-0.5084745763 + -0.2203389831x + 0.5084745763 + x2 = 0 + 0.5084745763

Reorder the terms:
-0.5084745763 + 0.5084745763 + -0.2203389831x + x2 = 0 + 0.5084745763

Combine like terms: -0.5084745763 + 0.5084745763 = 0.0000000000
0.0000000000 + -0.2203389831x + x2 = 0 + 0.5084745763
-0.2203389831x + x2 = 0 + 0.5084745763

Combine like terms: 0 + 0.5084745763 = 0.5084745763
-0.2203389831x + x2 = 0.5084745763

The x term is -0.2203389831x.  Take half its coefficient (-0.1101694916).
Square it (0.01213731688) and add it to both sides.

Add '0.01213731688' to each side of the equation.
-0.2203389831x + 0.01213731688 + x2 = 0.5084745763 + 0.01213731688

Reorder the terms:
0.01213731688 + -0.2203389831x + x2 = 0.5084745763 + 0.01213731688

Combine like terms: 0.5084745763 + 0.01213731688 = 0.52061189318
0.01213731688 + -0.2203389831x + x2 = 0.52061189318

Factor a perfect square on the left side:
(x + -0.1101694916)(x + -0.1101694916) = 0.52061189318

Calculate the square root of the right side: 0.721534402

Break this problem into two subproblems by setting 
(x + -0.1101694916) equal to 0.721534402 and -0.721534402.

Subproblem 1

x + -0.1101694916 = 0.721534402 Simplifying x + -0.1101694916 = 0.721534402 Reorder the terms: -0.1101694916 + x = 0.721534402 Solving -0.1101694916 + x = 0.721534402 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1101694916' to each side of the equation. -0.1101694916 + 0.1101694916 + x = 0.721534402 + 0.1101694916 Combine like terms: -0.1101694916 + 0.1101694916 = 0.0000000000 0.0000000000 + x = 0.721534402 + 0.1101694916 x = 0.721534402 + 0.1101694916 Combine like terms: 0.721534402 + 0.1101694916 = 0.8317038936 x = 0.8317038936 Simplifying x = 0.8317038936

Subproblem 2

x + -0.1101694916 = -0.721534402 Simplifying x + -0.1101694916 = -0.721534402 Reorder the terms: -0.1101694916 + x = -0.721534402 Solving -0.1101694916 + x = -0.721534402 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1101694916' to each side of the equation. -0.1101694916 + 0.1101694916 + x = -0.721534402 + 0.1101694916 Combine like terms: -0.1101694916 + 0.1101694916 = 0.0000000000 0.0000000000 + x = -0.721534402 + 0.1101694916 x = -0.721534402 + 0.1101694916 Combine like terms: -0.721534402 + 0.1101694916 = -0.6113649104 x = -0.6113649104 Simplifying x = -0.6113649104

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.8317038936, -0.6113649104}

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