x^2-x+18=0

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Solution for x^2-x+18=0 equation:

Simplifying
x2 + -1x + 18 = 0

Reorder the terms:
18 + -1x + x2 = 0

Solving
18 + -1x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-18' to each side of the equation.
18 + -1x + -18 + x2 = 0 + -18

Reorder the terms:
18 + -18 + -1x + x2 = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -1x + x2 = 0 + -18
-1x + x2 = 0 + -18

Combine like terms: 0 + -18 = -18
-1x + x2 = -18

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 = -18 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -18 + 0.25

Combine like terms: -18 + 0.25 = -17.75
0.25 + -1x + x2 = -17.75

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = -17.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.