3x^2+16x+60=0

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Solution for 3x^2+16x+60=0 equation:


Simplifying
3x2 + 16x + 60 = 0

Reorder the terms:
60 + 16x + 3x2 = 0

Solving
60 + 16x + 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'.
20 + 5.333333333x + x2 = 0

Move the constant term to the right:

Add '-20' to each side of the equation.
20 + 5.333333333x + -20 + x2 = 0 + -20

Reorder the terms:
20 + -20 + 5.333333333x + x2 = 0 + -20

Combine like terms: 20 + -20 = 0
0 + 5.333333333x + x2 = 0 + -20
5.333333333x + x2 = 0 + -20

Combine like terms: 0 + -20 = -20
5.333333333x + x2 = -20

The x term is 5.333333333x.  Take half its coefficient (2.666666667).
Square it (7.111111113) and add it to both sides.

Add '7.111111113' to each side of the equation.
5.333333333x + 7.111111113 + x2 = -20 + 7.111111113

Reorder the terms:
7.111111113 + 5.333333333x + x2 = -20 + 7.111111113

Combine like terms: -20 + 7.111111113 = -12.888888887
7.111111113 + 5.333333333x + x2 = -12.888888887

Factor a perfect square on the left side:
(x + 2.666666667)(x + 2.666666667) = -12.888888887

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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