x^2-49x-130=0

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Solution for x^2-49x-130=0 equation:


Simplifying
x2 + -49x + -130 = 0

Reorder the terms:
-130 + -49x + x2 = 0

Solving
-130 + -49x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '130' to each side of the equation.
-130 + -49x + 130 + x2 = 0 + 130

Reorder the terms:
-130 + 130 + -49x + x2 = 0 + 130

Combine like terms: -130 + 130 = 0
0 + -49x + x2 = 0 + 130
-49x + x2 = 0 + 130

Combine like terms: 0 + 130 = 130
-49x + x2 = 130

The x term is -49x.  Take half its coefficient (-24.5).
Square it (600.25) and add it to both sides.

Add '600.25' to each side of the equation.
-49x + 600.25 + x2 = 130 + 600.25

Reorder the terms:
600.25 + -49x + x2 = 130 + 600.25

Combine like terms: 130 + 600.25 = 730.25
600.25 + -49x + x2 = 730.25

Factor a perfect square on the left side:
(x + -24.5)(x + -24.5) = 730.25

Calculate the square root of the right side: 27.023138234

Break this problem into two subproblems by setting 
(x + -24.5) equal to 27.023138234 and -27.023138234.

Subproblem 1

x + -24.5 = 27.023138234 Simplifying x + -24.5 = 27.023138234 Reorder the terms: -24.5 + x = 27.023138234 Solving -24.5 + x = 27.023138234 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '24.5' to each side of the equation. -24.5 + 24.5 + x = 27.023138234 + 24.5 Combine like terms: -24.5 + 24.5 = 0.0 0.0 + x = 27.023138234 + 24.5 x = 27.023138234 + 24.5 Combine like terms: 27.023138234 + 24.5 = 51.523138234 x = 51.523138234 Simplifying x = 51.523138234

Subproblem 2

x + -24.5 = -27.023138234 Simplifying x + -24.5 = -27.023138234 Reorder the terms: -24.5 + x = -27.023138234 Solving -24.5 + x = -27.023138234 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '24.5' to each side of the equation. -24.5 + 24.5 + x = -27.023138234 + 24.5 Combine like terms: -24.5 + 24.5 = 0.0 0.0 + x = -27.023138234 + 24.5 x = -27.023138234 + 24.5 Combine like terms: -27.023138234 + 24.5 = -2.523138234 x = -2.523138234 Simplifying x = -2.523138234

Solution

The solution to the problem is based on the solutions from the subproblems. x = {51.523138234, -2.523138234}

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