(-1.2x^2)+x-55=0

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Solution for (-1.2x^2)+x-55=0 equation:


Simplifying
(-1.2x2) + x + -55 = 0

Reorder the terms:
-55 + x + (-1.2x2) = 0

Solving
-55 + x + (-1.2x2) = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1.2 the coefficient of the squared term: 

Divide each side by '-1.2'.
45.83333333 + -0.8333333333x + x2 = 0

Move the constant term to the right:

Add '-45.83333333' to each side of the equation.
45.83333333 + -0.8333333333x + -45.83333333 + x2 = 0 + -45.83333333

Reorder the terms:
45.83333333 + -45.83333333 + -0.8333333333x + x2 = 0 + -45.83333333

Combine like terms: 45.83333333 + -45.83333333 = 0.00000000
0.00000000 + -0.8333333333x + x2 = 0 + -45.83333333
-0.8333333333x + x2 = 0 + -45.83333333

Combine like terms: 0 + -45.83333333 = -45.83333333
-0.8333333333x + x2 = -45.83333333

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.
-0.8333333333x + 0.25 + x2 = -45.83333333 + 0.25

Reorder the terms:
0.25 + -0.8333333333x + x2 = -45.83333333 + 0.25

Combine like terms: -45.83333333 + 0.25 = -45.58333333
0.25 + -0.8333333333x + x2 = -45.58333333

Factor a perfect square on the left side:
((x) + 0.5)((x) + 0.5) = -45.58333333

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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