-.231x^2+x+-2.16=0

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Solution for -.231x^2+x+-2.16=0 equation:


Simplifying
-0.231x2 + x + -2.16 = 0

Reorder the terms:
-2.16 + x + -0.231x2 = 0

Solving
-2.16 + x + -0.231x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.231 the coefficient of the squared term: 

Divide each side by '-0.231'.
9.350649351 + -4.329004329x + x2 = 0

Move the constant term to the right:

Add '-9.350649351' to each side of the equation.
9.350649351 + -4.329004329x + -9.350649351 + x2 = 0 + -9.350649351

Reorder the terms:
9.350649351 + -9.350649351 + -4.329004329x + x2 = 0 + -9.350649351

Combine like terms: 9.350649351 + -9.350649351 = 0.000000000
0.000000000 + -4.329004329x + x2 = 0 + -9.350649351
-4.329004329x + x2 = 0 + -9.350649351

Combine like terms: 0 + -9.350649351 = -9.350649351
-4.329004329x + x2 = -9.350649351

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.
-4.329004329x + 0.25 + x2 = -9.350649351 + 0.25

Reorder the terms:
0.25 + -4.329004329x + x2 = -9.350649351 + 0.25

Combine like terms: -9.350649351 + 0.25 = -9.100649351
0.25 + -4.329004329x + x2 = -9.100649351

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -9.100649351

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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