4u^2-15u+18=0

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Solution for 4u^2-15u+18=0 equation:


Simplifying
4u2 + -15u + 18 = 0

Reorder the terms:
18 + -15u + 4u2 = 0

Solving
18 + -15u + 4u2 = 0

Solving for variable 'u'.

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

Divide each side by '4'.
4.5 + -3.75u + u2 = 0

Move the constant term to the right:

Add '-4.5' to each side of the equation.
4.5 + -3.75u + -4.5 + u2 = 0 + -4.5

Reorder the terms:
4.5 + -4.5 + -3.75u + u2 = 0 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + -3.75u + u2 = 0 + -4.5
-3.75u + u2 = 0 + -4.5

Combine like terms: 0 + -4.5 = -4.5
-3.75u + u2 = -4.5

The u term is -3.75u.  Take half its coefficient (-1.875).
Square it (3.515625) and add it to both sides.

Add '3.515625' to each side of the equation.
-3.75u + 3.515625 + u2 = -4.5 + 3.515625

Reorder the terms:
3.515625 + -3.75u + u2 = -4.5 + 3.515625

Combine like terms: -4.5 + 3.515625 = -0.984375
3.515625 + -3.75u + u2 = -0.984375

Factor a perfect square on the left side:
(u + -1.875)(u + -1.875) = -0.984375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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