0=-5u^2+19u-19

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Solution for 0=-5u^2+19u-19 equation:


Simplifying
0 = -5u2 + 19u + -19

Reorder the terms:
0 = -19 + 19u + -5u2

Solving
0 = -19 + 19u + -5u2

Solving for variable 'u'.

Combine like terms: 0 + 19 = 19
19 + -19u + 5u2 = -19 + 19u + -5u2 + 19 + -19u + 5u2

Reorder the terms:
19 + -19u + 5u2 = -19 + 19 + 19u + -19u + -5u2 + 5u2

Combine like terms: -19 + 19 = 0
19 + -19u + 5u2 = 0 + 19u + -19u + -5u2 + 5u2
19 + -19u + 5u2 = 19u + -19u + -5u2 + 5u2

Combine like terms: 19u + -19u = 0
19 + -19u + 5u2 = 0 + -5u2 + 5u2
19 + -19u + 5u2 = -5u2 + 5u2

Combine like terms: -5u2 + 5u2 = 0
19 + -19u + 5u2 = 0

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

Divide each side by '5'.
3.8 + -3.8u + u2 = 0

Move the constant term to the right:

Add '-3.8' to each side of the equation.
3.8 + -3.8u + -3.8 + u2 = 0 + -3.8

Reorder the terms:
3.8 + -3.8 + -3.8u + u2 = 0 + -3.8

Combine like terms: 3.8 + -3.8 = 0.0
0.0 + -3.8u + u2 = 0 + -3.8
-3.8u + u2 = 0 + -3.8

Combine like terms: 0 + -3.8 = -3.8
-3.8u + u2 = -3.8

The u term is -3.8u.  Take half its coefficient (-1.9).
Square it (3.61) and add it to both sides.

Add '3.61' to each side of the equation.
-3.8u + 3.61 + u2 = -3.8 + 3.61

Reorder the terms:
3.61 + -3.8u + u2 = -3.8 + 3.61

Combine like terms: -3.8 + 3.61 = -0.19
3.61 + -3.8u + u2 = -0.19

Factor a perfect square on the left side:
(u + -1.9)(u + -1.9) = -0.19

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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