3x^2-31x+225=0

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Solution for 3x^2-31x+225=0 equation:


Simplifying
3x2 + -31x + 225 = 0

Reorder the terms:
225 + -31x + 3x2 = 0

Solving
225 + -31x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
75 + -10.33333333x + x2 = 0

Move the constant term to the right:

Add '-75' to each side of the equation.
75 + -10.33333333x + -75 + x2 = 0 + -75

Reorder the terms:
75 + -75 + -10.33333333x + x2 = 0 + -75

Combine like terms: 75 + -75 = 0
0 + -10.33333333x + x2 = 0 + -75
-10.33333333x + x2 = 0 + -75

Combine like terms: 0 + -75 = -75
-10.33333333x + x2 = -75

The x term is -10.33333333x.  Take half its coefficient (-5.166666665).
Square it (26.69444443) and add it to both sides.

Add '26.69444443' to each side of the equation.
-10.33333333x + 26.69444443 + x2 = -75 + 26.69444443

Reorder the terms:
26.69444443 + -10.33333333x + x2 = -75 + 26.69444443

Combine like terms: -75 + 26.69444443 = -48.30555557
26.69444443 + -10.33333333x + x2 = -48.30555557

Factor a perfect square on the left side:
(x + -5.166666665)(x + -5.166666665) = -48.30555557

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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