(15x^2)+x+28=0

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Solution for (15x^2)+x+28=0 equation:


Simplifying
(15x2) + x + 28 = 0

Reorder the terms:
28 + x + (15x2) = 0

Solving
28 + x + (15x2) = 0

Solving for variable 'x'.

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

Divide each side by '15'.
1.866666667 + 0.06666666667x + x2 = 0

Move the constant term to the right:

Add '-1.866666667' to each side of the equation.
1.866666667 + 0.06666666667x + -1.866666667 + x2 = 0 + -1.866666667

Reorder the terms:
1.866666667 + -1.866666667 + 0.06666666667x + x2 = 0 + -1.866666667

Combine like terms: 1.866666667 + -1.866666667 = 0.000000000
0.000000000 + 0.06666666667x + x2 = 0 + -1.866666667
0.06666666667x + x2 = 0 + -1.866666667

Combine like terms: 0 + -1.866666667 = -1.866666667
0.06666666667x + x2 = -1.866666667

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.06666666667x + 0.25 + x2 = -1.866666667 + 0.25

Reorder the terms:
0.25 + 0.06666666667x + x2 = -1.866666667 + 0.25

Combine like terms: -1.866666667 + 0.25 = -1.616666667
0.25 + 0.06666666667x + x2 = -1.616666667

Factor a perfect square on the left side:
((x) + 0.5)((x) + 0.5) = -1.616666667

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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