8u^2-5u+9=0

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Solution for 8u^2-5u+9=0 equation:


Simplifying
8u2 + -5u + 9 = 0

Reorder the terms:
9 + -5u + 8u2 = 0

Solving
9 + -5u + 8u2 = 0

Solving for variable 'u'.

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

Divide each side by '8'.
1.125 + -0.625u + u2 = 0

Move the constant term to the right:

Add '-1.125' to each side of the equation.
1.125 + -0.625u + -1.125 + u2 = 0 + -1.125

Reorder the terms:
1.125 + -1.125 + -0.625u + u2 = 0 + -1.125

Combine like terms: 1.125 + -1.125 = 0.000
0.000 + -0.625u + u2 = 0 + -1.125
-0.625u + u2 = 0 + -1.125

Combine like terms: 0 + -1.125 = -1.125
-0.625u + u2 = -1.125

The u term is -0.625u.  Take half its coefficient (-0.3125).
Square it (0.09765625) and add it to both sides.

Add '0.09765625' to each side of the equation.
-0.625u + 0.09765625 + u2 = -1.125 + 0.09765625

Reorder the terms:
0.09765625 + -0.625u + u2 = -1.125 + 0.09765625

Combine like terms: -1.125 + 0.09765625 = -1.02734375
0.09765625 + -0.625u + u2 = -1.02734375

Factor a perfect square on the left side:
(u + -0.3125)(u + -0.3125) = -1.02734375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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