2x^2-49x-910=0

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Solution for 2x^2-49x-910=0 equation:


Simplifying
2x2 + -49x + -910 = 0

Reorder the terms:
-910 + -49x + 2x2 = 0

Solving
-910 + -49x + 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'.
-455 + -24.5x + x2 = 0

Move the constant term to the right:

Add '455' to each side of the equation.
-455 + -24.5x + 455 + x2 = 0 + 455

Reorder the terms:
-455 + 455 + -24.5x + x2 = 0 + 455

Combine like terms: -455 + 455 = 0
0 + -24.5x + x2 = 0 + 455
-24.5x + x2 = 0 + 455

Combine like terms: 0 + 455 = 455
-24.5x + x2 = 455

The x term is -24.5x.  Take half its coefficient (-12.25).
Square it (150.0625) and add it to both sides.

Add '150.0625' to each side of the equation.
-24.5x + 150.0625 + x2 = 455 + 150.0625

Reorder the terms:
150.0625 + -24.5x + x2 = 455 + 150.0625

Combine like terms: 455 + 150.0625 = 605.0625
150.0625 + -24.5x + x2 = 605.0625

Factor a perfect square on the left side:
(x + -12.25)(x + -12.25) = 605.0625

Calculate the square root of the right side: 24.598018213

Break this problem into two subproblems by setting 
(x + -12.25) equal to 24.598018213 and -24.598018213.

Subproblem 1

x + -12.25 = 24.598018213 Simplifying x + -12.25 = 24.598018213 Reorder the terms: -12.25 + x = 24.598018213 Solving -12.25 + x = 24.598018213 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.25' to each side of the equation. -12.25 + 12.25 + x = 24.598018213 + 12.25 Combine like terms: -12.25 + 12.25 = 0.00 0.00 + x = 24.598018213 + 12.25 x = 24.598018213 + 12.25 Combine like terms: 24.598018213 + 12.25 = 36.848018213 x = 36.848018213 Simplifying x = 36.848018213

Subproblem 2

x + -12.25 = -24.598018213 Simplifying x + -12.25 = -24.598018213 Reorder the terms: -12.25 + x = -24.598018213 Solving -12.25 + x = -24.598018213 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.25' to each side of the equation. -12.25 + 12.25 + x = -24.598018213 + 12.25 Combine like terms: -12.25 + 12.25 = 0.00 0.00 + x = -24.598018213 + 12.25 x = -24.598018213 + 12.25 Combine like terms: -24.598018213 + 12.25 = -12.348018213 x = -12.348018213 Simplifying x = -12.348018213

Solution

The solution to the problem is based on the solutions from the subproblems. x = {36.848018213, -12.348018213}

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