x^2-x-510=0

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Solution for x^2-x-510=0 equation:


Simplifying
x2 + -1x + -510 = 0

Reorder the terms:
-510 + -1x + x2 = 0

Solving
-510 + -1x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '510' to each side of the equation.
-510 + -1x + 510 + x2 = 0 + 510

Reorder the terms:
-510 + 510 + -1x + x2 = 0 + 510

Combine like terms: -510 + 510 = 0
0 + -1x + x2 = 0 + 510
-1x + x2 = 0 + 510

Combine like terms: 0 + 510 = 510
-1x + x2 = 510

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = 510 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 510 + 0.25

Combine like terms: 510 + 0.25 = 510.25
0.25 + -1x + x2 = 510.25

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 510.25

Calculate the square root of the right side: 22.588713996

Break this problem into two subproblems by setting 
(x + -0.5) equal to 22.588713996 and -22.588713996.

Subproblem 1

x + -0.5 = 22.588713996 Simplifying x + -0.5 = 22.588713996 Reorder the terms: -0.5 + x = 22.588713996 Solving -0.5 + x = 22.588713996 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 22.588713996 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 22.588713996 + 0.5 x = 22.588713996 + 0.5 Combine like terms: 22.588713996 + 0.5 = 23.088713996 x = 23.088713996 Simplifying x = 23.088713996

Subproblem 2

x + -0.5 = -22.588713996 Simplifying x + -0.5 = -22.588713996 Reorder the terms: -0.5 + x = -22.588713996 Solving -0.5 + x = -22.588713996 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -22.588713996 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -22.588713996 + 0.5 x = -22.588713996 + 0.5 Combine like terms: -22.588713996 + 0.5 = -22.088713996 x = -22.088713996 Simplifying x = -22.088713996

Solution

The solution to the problem is based on the solutions from the subproblems. x = {23.088713996, -22.088713996}

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