35+18u+5u^2=0

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Solution for 35+18u+5u^2=0 equation:


Simplifying
35 + 18u + 5u2 = 0

Solving
35 + 18u + 5u2 = 0

Solving for variable 'u'.

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

Divide each side by '5'.
7 + 3.6u + u2 = 0

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + 3.6u + -7 + u2 = 0 + -7

Reorder the terms:
7 + -7 + 3.6u + u2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 3.6u + u2 = 0 + -7
3.6u + u2 = 0 + -7

Combine like terms: 0 + -7 = -7
3.6u + u2 = -7

The u term is 3.6u.  Take half its coefficient (1.8).
Square it (3.24) and add it to both sides.

Add '3.24' to each side of the equation.
3.6u + 3.24 + u2 = -7 + 3.24

Reorder the terms:
3.24 + 3.6u + u2 = -7 + 3.24

Combine like terms: -7 + 3.24 = -3.76
3.24 + 3.6u + u2 = -3.76

Factor a perfect square on the left side:
(u + 1.8)(u + 1.8) = -3.76

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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