x^2-60x-800=0

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Solution for x^2-60x-800=0 equation:


Simplifying
x2 + -60x + -800 = 0

Reorder the terms:
-800 + -60x + x2 = 0

Solving
-800 + -60x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '800' to each side of the equation.
-800 + -60x + 800 + x2 = 0 + 800

Reorder the terms:
-800 + 800 + -60x + x2 = 0 + 800

Combine like terms: -800 + 800 = 0
0 + -60x + x2 = 0 + 800
-60x + x2 = 0 + 800

Combine like terms: 0 + 800 = 800
-60x + x2 = 800

The x term is -60x.  Take half its coefficient (-30).
Square it (900) and add it to both sides.

Add '900' to each side of the equation.
-60x + 900 + x2 = 800 + 900

Reorder the terms:
900 + -60x + x2 = 800 + 900

Combine like terms: 800 + 900 = 1700
900 + -60x + x2 = 1700

Factor a perfect square on the left side:
(x + -30)(x + -30) = 1700

Calculate the square root of the right side: 41.231056256

Break this problem into two subproblems by setting 
(x + -30) equal to 41.231056256 and -41.231056256.

Subproblem 1

x + -30 = 41.231056256 Simplifying x + -30 = 41.231056256 Reorder the terms: -30 + x = 41.231056256 Solving -30 + x = 41.231056256 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '30' to each side of the equation. -30 + 30 + x = 41.231056256 + 30 Combine like terms: -30 + 30 = 0 0 + x = 41.231056256 + 30 x = 41.231056256 + 30 Combine like terms: 41.231056256 + 30 = 71.231056256 x = 71.231056256 Simplifying x = 71.231056256

Subproblem 2

x + -30 = -41.231056256 Simplifying x + -30 = -41.231056256 Reorder the terms: -30 + x = -41.231056256 Solving -30 + x = -41.231056256 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '30' to each side of the equation. -30 + 30 + x = -41.231056256 + 30 Combine like terms: -30 + 30 = 0 0 + x = -41.231056256 + 30 x = -41.231056256 + 30 Combine like terms: -41.231056256 + 30 = -11.231056256 x = -11.231056256 Simplifying x = -11.231056256

Solution

The solution to the problem is based on the solutions from the subproblems. x = {71.231056256, -11.231056256}

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