(15x^2)+8x+5=0

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Solution for (15x^2)+8x+5=0 equation: 


Simplifying
(15x2) + 8x + 5 = 0

Reorder the terms:
5 + 8x + (15x2) = 0

Solving
5 + 8x + (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'.
0.3333333333 + 0.5333333333x + x2 = 0

Move the constant term to the right:

Add '-0.3333333333' to each side of the equation.
0.3333333333 + 0.5333333333x + -0.3333333333 + x2 = 0 + -0.3333333333

Reorder the terms:
0.3333333333 + -0.3333333333 + 0.5333333333x + x2 = 0 + -0.3333333333

Combine like terms: 0.3333333333 + -0.3333333333 = 0.0000000000
0.0000000000 + 0.5333333333x + x2 = 0 + -0.3333333333
0.5333333333x + x2 = 0 + -0.3333333333

Combine like terms: 0 + -0.3333333333 = -0.3333333333
0.5333333333x + x2 = -0.3333333333

The x term is 0.5333333333x.  Take half its coefficient (0.2666666667).
Square it (0.07111111113) and add it to both sides.

Add '0.07111111113' to each side of the equation.
0.5333333333x + 0.07111111113 + x2 = -0.3333333333 + 0.07111111113

Reorder the terms:
0.07111111113 + 0.5333333333x + x2 = -0.3333333333 + 0.07111111113

Combine like terms: -0.3333333333 + 0.07111111113 = -0.26222222217
0.07111111113 + 0.5333333333x + x2 = -0.26222222217

Factor a perfect square on the left side:
((x) + 0.2666666667)((x) + 0.2666666667) = -0.26222222217

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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