(x^2)-x+400=0

Solution for (x^2)-x+400=0 equation:

Simplifying
(x2) + -1x + 400 = 0
x2 + -1x + 400 = 0

Reorder the terms:
400 + -1x + x2 = 0

Solving
400 + -1x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-400' to each side of the equation.
400 + -1x + -400 + x2 = 0 + -400

Reorder the terms:
400 + -400 + -1x + x2 = 0 + -400

Combine like terms: 400 + -400 = 0
0 + -1x + x2 = 0 + -400
-1x + x2 = 0 + -400

Combine like terms: 0 + -400 = -400
-1x + x2 = -400

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 = -400 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -400 + 0.25

Combine like terms: -400 + 0.25 = -399.75
0.25 + -1x + x2 = -399.75

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = -399.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.