-980+191x-25x^2=0

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Solution for -980+191x-25x^2=0 equation:


Simplifying
-980 + 191x + -25x2 = 0

Solving
-980 + 191x + -25x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-25 the coefficient of the squared term: 

Divide each side by '-25'.
39.2 + -7.64x + x2 = 0

Move the constant term to the right:

Add '-39.2' to each side of the equation.
39.2 + -7.64x + -39.2 + x2 = 0 + -39.2

Reorder the terms:
39.2 + -39.2 + -7.64x + x2 = 0 + -39.2

Combine like terms: 39.2 + -39.2 = 0.0
0.0 + -7.64x + x2 = 0 + -39.2
-7.64x + x2 = 0 + -39.2

Combine like terms: 0 + -39.2 = -39.2
-7.64x + x2 = -39.2

The x term is -7.64x.  Take half its coefficient (-3.82).
Square it (14.5924) and add it to both sides.

Add '14.5924' to each side of the equation.
-7.64x + 14.5924 + x2 = -39.2 + 14.5924

Reorder the terms:
14.5924 + -7.64x + x2 = -39.2 + 14.5924

Combine like terms: -39.2 + 14.5924 = -24.6076
14.5924 + -7.64x + x2 = -24.6076

Factor a perfect square on the left side:
(x + -3.82)(x + -3.82) = -24.6076

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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