x^2+x=-.89

Solution for x^2+x=-.89 equation:

Simplifying
x2 + x = -0.89

Reorder the terms:
x + x2 = -0.89

Solving
x + x2 = -0.89

Solving for variable 'x'.

Reorder the terms:
0.89 + x + x2 = -0.89 + 0.89

Combine like terms: -0.89 + 0.89 = 0.00
0.89 + x + x2 = 0.00

Begin completing the square.

Move the constant term to the right:

Add '-0.89' to each side of the equation.
0.89 + x + -0.89 + x2 = 0.00 + -0.89

Reorder the terms:
0.89 + -0.89 + x + x2 = 0.00 + -0.89

Combine like terms: 0.89 + -0.89 = 0.00
0.00 + x + x2 = 0.00 + -0.89
x + x2 = 0.00 + -0.89

Combine like terms: 0.00 + -0.89 = -0.89
x + x2 = -0.89

The x term is x.  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.
x + 0.25 + x2 = -0.89 + 0.25

Reorder the terms:
0.25 + x + x2 = -0.89 + 0.25

Combine like terms: -0.89 + 0.25 = -0.64
0.25 + x + x2 = -0.64

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -0.64

Can't calculate square root of the right side.

The solution to this equation could not be determined.