2x^2+49x-246=0

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Solution for 2x^2+49x-246=0 equation:


Simplifying
2x2 + 49x + -246 = 0

Reorder the terms:
-246 + 49x + 2x2 = 0

Solving
-246 + 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'.
-123 + 24.5x + x2 = 0

Move the constant term to the right:

Add '123' to each side of the equation.
-123 + 24.5x + 123 + x2 = 0 + 123

Reorder the terms:
-123 + 123 + 24.5x + x2 = 0 + 123

Combine like terms: -123 + 123 = 0
0 + 24.5x + x2 = 0 + 123
24.5x + x2 = 0 + 123

Combine like terms: 0 + 123 = 123
24.5x + x2 = 123

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 = 123 + 150.0625

Reorder the terms:
150.0625 + 24.5x + x2 = 123 + 150.0625

Combine like terms: 123 + 150.0625 = 273.0625
150.0625 + 24.5x + x2 = 273.0625

Factor a perfect square on the left side:
(x + 12.25)(x + 12.25) = 273.0625

Calculate the square root of the right side: 16.52460287

Break this problem into two subproblems by setting 
(x + 12.25) equal to 16.52460287 and -16.52460287.

Subproblem 1

x + 12.25 = 16.52460287 Simplifying x + 12.25 = 16.52460287 Reorder the terms: 12.25 + x = 16.52460287 Solving 12.25 + x = 16.52460287 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 = 16.52460287 + -12.25 Combine like terms: 12.25 + -12.25 = 0.00 0.00 + x = 16.52460287 + -12.25 x = 16.52460287 + -12.25 Combine like terms: 16.52460287 + -12.25 = 4.27460287 x = 4.27460287 Simplifying x = 4.27460287

Subproblem 2

x + 12.25 = -16.52460287 Simplifying x + 12.25 = -16.52460287 Reorder the terms: 12.25 + x = -16.52460287 Solving 12.25 + x = -16.52460287 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 = -16.52460287 + -12.25 Combine like terms: 12.25 + -12.25 = 0.00 0.00 + x = -16.52460287 + -12.25 x = -16.52460287 + -12.25 Combine like terms: -16.52460287 + -12.25 = -28.77460287 x = -28.77460287 Simplifying x = -28.77460287

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.27460287, -28.77460287}

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