8x^2+5x+2=0

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


Simplifying
8x2 + 5x + 2 = 0

Reorder the terms:
2 + 5x + 8x2 = 0

Solving
2 + 5x + 8x2 = 0

Solving for variable 'x'.

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

Divide each side by '8'.
0.25 + 0.625x + x2 = 0

Move the constant term to the right:

Add '-0.25' to each side of the equation.
0.25 + 0.625x + -0.25 + x2 = 0 + -0.25

Reorder the terms:
0.25 + -0.25 + 0.625x + x2 = 0 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + 0.625x + x2 = 0 + -0.25
0.625x + x2 = 0 + -0.25

Combine like terms: 0 + -0.25 = -0.25
0.625x + x2 = -0.25

The x term is 0.625x.  Take half its coefficient (0.3125).
Square it (0.09765625) and add it to both sides.

Add '0.09765625' to each side of the equation.
0.625x + 0.09765625 + x2 = -0.25 + 0.09765625

Reorder the terms:
0.09765625 + 0.625x + x2 = -0.25 + 0.09765625

Combine like terms: -0.25 + 0.09765625 = -0.15234375
0.09765625 + 0.625x + x2 = -0.15234375

Factor a perfect square on the left side:
(x + 0.3125)(x + 0.3125) = -0.15234375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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