x^2-320=x-10

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Solution for x^2-320=x-10 equation:


Simplifying
x2 + -320 = x + -10

Reorder the terms:
-320 + x2 = x + -10

Reorder the terms:
-320 + x2 = -10 + x

Solving
-320 + x2 = -10 + x

Solving for variable 'x'.

Reorder the terms:
-320 + 10 + -1x + x2 = -10 + x + 10 + -1x

Combine like terms: -320 + 10 = -310
-310 + -1x + x2 = -10 + x + 10 + -1x

Reorder the terms:
-310 + -1x + x2 = -10 + 10 + x + -1x

Combine like terms: -10 + 10 = 0
-310 + -1x + x2 = 0 + x + -1x
-310 + -1x + x2 = x + -1x

Combine like terms: x + -1x = 0
-310 + -1x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '310' to each side of the equation.
-310 + -1x + 310 + x2 = 0 + 310

Reorder the terms:
-310 + 310 + -1x + x2 = 0 + 310

Combine like terms: -310 + 310 = 0
0 + -1x + x2 = 0 + 310
-1x + x2 = 0 + 310

Combine like terms: 0 + 310 = 310
-1x + x2 = 310

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 = 310 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 310 + 0.25

Combine like terms: 310 + 0.25 = 310.25
0.25 + -1x + x2 = 310.25

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 310.25

Calculate the square root of the right side: 17.613914954

Break this problem into two subproblems by setting 
(x + -0.5) equal to 17.613914954 and -17.613914954.

Subproblem 1

x + -0.5 = 17.613914954 Simplifying x + -0.5 = 17.613914954 Reorder the terms: -0.5 + x = 17.613914954 Solving -0.5 + x = 17.613914954 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 = 17.613914954 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 17.613914954 + 0.5 x = 17.613914954 + 0.5 Combine like terms: 17.613914954 + 0.5 = 18.113914954 x = 18.113914954 Simplifying x = 18.113914954

Subproblem 2

x + -0.5 = -17.613914954 Simplifying x + -0.5 = -17.613914954 Reorder the terms: -0.5 + x = -17.613914954 Solving -0.5 + x = -17.613914954 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 = -17.613914954 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -17.613914954 + 0.5 x = -17.613914954 + 0.5 Combine like terms: -17.613914954 + 0.5 = -17.113914954 x = -17.113914954 Simplifying x = -17.113914954

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.113914954, -17.113914954}

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