(2x^2)-x-59=0

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Solution for (2x^2)-x-59=0 equation:


Simplifying
(2x2) + -1x + -59 = 0

Reorder the terms:
-59 + -1x + (2x2) = 0

Solving
-59 + -1x + (2x2) = 0

Solving for variable 'x'.

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

Divide each side by '2'.
-29.5 + -0.5x + x2 = 0

Move the constant term to the right:

Add '29.5' to each side of the equation.
-29.5 + -0.5x + 29.5 + x2 = 0 + 29.5

Reorder the terms:
-29.5 + 29.5 + -0.5x + x2 = 0 + 29.5

Combine like terms: -29.5 + 29.5 = 0.0
0.0 + -0.5x + x2 = 0 + 29.5
-0.5x + x2 = 0 + 29.5

Combine like terms: 0 + 29.5 = 29.5
-0.5x + x2 = 29.5

The x term is -0.5x.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5x + 0.0625 + x2 = 29.5 + 0.0625

Reorder the terms:
0.0625 + -0.5x + x2 = 29.5 + 0.0625

Combine like terms: 29.5 + 0.0625 = 29.5625
0.0625 + -0.5x + x2 = 29.5625

Factor a perfect square on the left side:
((x) + -0.25)((x) + -0.25) = 29.5625

Calculate the square root of the right side: 5.437140793

Break this problem into two subproblems by setting 
((x) + -0.25) equal to 5.437140793 and -5.437140793.

Subproblem 1

(x) + -0.25 = 5.437140793 Simplifying (x) + -0.25 = 5.437140793 x + -0.25 = 5.437140793 Reorder the terms: -0.25 + x = 5.437140793 Solving -0.25 + x = 5.437140793 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 5.437140793 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 5.437140793 + 0.25 x = 5.437140793 + 0.25 Combine like terms: 5.437140793 + 0.25 = 5.687140793 x = 5.687140793 Simplifying x = 5.687140793

Subproblem 2

(x) + -0.25 = -5.437140793 Simplifying (x) + -0.25 = -5.437140793 x + -0.25 = -5.437140793 Reorder the terms: -0.25 + x = -5.437140793 Solving -0.25 + x = -5.437140793 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -5.437140793 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -5.437140793 + 0.25 x = -5.437140793 + 0.25 Combine like terms: -5.437140793 + 0.25 = -5.187140793 x = -5.187140793 Simplifying x = -5.187140793

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.687140793, -5.187140793}

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