5*x^2+0.5*x+98=0

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Solution for 5*x^2+0.5*x+98=0 equation:


Simplifying
5x2 + 0.5x + 98 = 0

Reorder the terms:
98 + 0.5x + 5x2 = 0

Solving
98 + 0.5x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
19.6 + 0.1x + x2 = 0

Move the constant term to the right:

Add '-19.6' to each side of the equation.
19.6 + 0.1x + -19.6 + x2 = 0 + -19.6

Reorder the terms:
19.6 + -19.6 + 0.1x + x2 = 0 + -19.6

Combine like terms: 19.6 + -19.6 = 0.0
0.0 + 0.1x + x2 = 0 + -19.6
0.1x + x2 = 0 + -19.6

Combine like terms: 0 + -19.6 = -19.6
0.1x + x2 = -19.6

The x term is 0.1x.  Take half its coefficient (0.05).
Square it (0.0025) and add it to both sides.

Add '0.0025' to each side of the equation.
0.1x + 0.0025 + x2 = -19.6 + 0.0025

Reorder the terms:
0.0025 + 0.1x + x2 = -19.6 + 0.0025

Combine like terms: -19.6 + 0.0025 = -19.5975
0.0025 + 0.1x + x2 = -19.5975

Factor a perfect square on the left side:
(x + 0.05)(x + 0.05) = -19.5975

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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