8*x^2+3*x+2500=0

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Solution for 8*x^2+3*x+2500=0 equation:


Simplifying
8x2 + 3x + 2500 = 0

Reorder the terms:
2500 + 3x + 8x2 = 0

Solving
2500 + 3x + 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'.
312.5 + 0.375x + x2 = 0

Move the constant term to the right:

Add '-312.5' to each side of the equation.
312.5 + 0.375x + -312.5 + x2 = 0 + -312.5

Reorder the terms:
312.5 + -312.5 + 0.375x + x2 = 0 + -312.5

Combine like terms: 312.5 + -312.5 = 0.0
0.0 + 0.375x + x2 = 0 + -312.5
0.375x + x2 = 0 + -312.5

Combine like terms: 0 + -312.5 = -312.5
0.375x + x2 = -312.5

The x term is 0.375x.  Take half its coefficient (0.1875).
Square it (0.03515625) and add it to both sides.

Add '0.03515625' to each side of the equation.
0.375x + 0.03515625 + x2 = -312.5 + 0.03515625

Reorder the terms:
0.03515625 + 0.375x + x2 = -312.5 + 0.03515625

Combine like terms: -312.5 + 0.03515625 = -312.46484375
0.03515625 + 0.375x + x2 = -312.46484375

Factor a perfect square on the left side:
(x + 0.1875)(x + 0.1875) = -312.46484375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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