15-8q+2.25q^2=0

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Solution for 15-8q+2.25q^2=0 equation:


Simplifying
15 + -8q + 2.25q2 = 0

Solving
15 + -8q + 2.25q2 = 0

Solving for variable 'q'.

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

Divide each side by '2.25'.
6.666666667 + -3.555555556q + q2 = 0

Move the constant term to the right:

Add '-6.666666667' to each side of the equation.
6.666666667 + -3.555555556q + -6.666666667 + q2 = 0 + -6.666666667

Reorder the terms:
6.666666667 + -6.666666667 + -3.555555556q + q2 = 0 + -6.666666667

Combine like terms: 6.666666667 + -6.666666667 = 0.000000000
0.000000000 + -3.555555556q + q2 = 0 + -6.666666667
-3.555555556q + q2 = 0 + -6.666666667

Combine like terms: 0 + -6.666666667 = -6.666666667
-3.555555556q + q2 = -6.666666667

The q term is -3.555555556q.  Take half its coefficient (-1.777777778).
Square it (3.160493828) and add it to both sides.

Add '3.160493828' to each side of the equation.
-3.555555556q + 3.160493828 + q2 = -6.666666667 + 3.160493828

Reorder the terms:
3.160493828 + -3.555555556q + q2 = -6.666666667 + 3.160493828

Combine like terms: -6.666666667 + 3.160493828 = -3.506172839
3.160493828 + -3.555555556q + q2 = -3.506172839

Factor a perfect square on the left side:
(q + -1.777777778)(q + -1.777777778) = -3.506172839

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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