8.3x^2+0.4x+1.5=0

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Solution for 8.3x^2+0.4x+1.5=0 equation: 


Simplifying
8.3x2 + 0.4x + 1.5 = 0

Reorder the terms:
1.5 + 0.4x + 8.3x2 = 0

Solving
1.5 + 0.4x + 8.3x2 = 0

Solving for variable 'x'.

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

Divide each side by '8.3'.
0.1807228916 + 0.04819277108x + x2 = 0

Move the constant term to the right:

Add '-0.1807228916' to each side of the equation.
0.1807228916 + 0.04819277108x + -0.1807228916 + x2 = 0 + -0.1807228916

Reorder the terms:
0.1807228916 + -0.1807228916 + 0.04819277108x + x2 = 0 + -0.1807228916

Combine like terms: 0.1807228916 + -0.1807228916 = 0.0000000000
0.0000000000 + 0.04819277108x + x2 = 0 + -0.1807228916
0.04819277108x + x2 = 0 + -0.1807228916

Combine like terms: 0 + -0.1807228916 = -0.1807228916
0.04819277108x + x2 = -0.1807228916

The x term is 0.04819277108x.  Take half its coefficient (0.02409638554).
Square it (0.0005806357961) and add it to both sides.

Add '0.0005806357961' to each side of the equation.
0.04819277108x + 0.0005806357961 + x2 = -0.1807228916 + 0.0005806357961

Reorder the terms:
0.0005806357961 + 0.04819277108x + x2 = -0.1807228916 + 0.0005806357961

Combine like terms: -0.1807228916 + 0.0005806357961 = -0.1801422558039
0.0005806357961 + 0.04819277108x + x2 = -0.1801422558039

Factor a perfect square on the left side:
(x + 0.02409638554)(x + 0.02409638554) = -0.1801422558039

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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