13.2x^2+13x+15=0

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Solution for 13.2x^2+13x+15=0 equation:


Simplifying
13.2x2 + 13x + 15 = 0

Reorder the terms:
15 + 13x + 13.2x2 = 0

Solving
15 + 13x + 13.2x2 = 0

Solving for variable 'x'.

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

Divide each side by '13.2'.
1.136363636 + 0.9848484848x + x2 = 0

Move the constant term to the right:

Add '-1.136363636' to each side of the equation.
1.136363636 + 0.9848484848x + -1.136363636 + x2 = 0 + -1.136363636

Reorder the terms:
1.136363636 + -1.136363636 + 0.9848484848x + x2 = 0 + -1.136363636

Combine like terms: 1.136363636 + -1.136363636 = 0.000000000
0.000000000 + 0.9848484848x + x2 = 0 + -1.136363636
0.9848484848x + x2 = 0 + -1.136363636

Combine like terms: 0 + -1.136363636 = -1.136363636
0.9848484848x + x2 = -1.136363636

The x term is 0.9848484848x.  Take half its coefficient (0.4924242424).
Square it (0.2424816345) and add it to both sides.

Add '0.2424816345' to each side of the equation.
0.9848484848x + 0.2424816345 + x2 = -1.136363636 + 0.2424816345

Reorder the terms:
0.2424816345 + 0.9848484848x + x2 = -1.136363636 + 0.2424816345

Combine like terms: -1.136363636 + 0.2424816345 = -0.8938820015
0.2424816345 + 0.9848484848x + x2 = -0.8938820015

Factor a perfect square on the left side:
(x + 0.4924242424)(x + 0.4924242424) = -0.8938820015

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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