0.1x^2+x+75=0

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Solution for 0.1x^2+x+75=0 equation:


Simplifying
0.1x2 + x + 75 = 0

Reorder the terms:
75 + x + 0.1x2 = 0

Solving
75 + x + 0.1x2 = 0

Solving for variable 'x'.

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

Divide each side by '0.1'.
750 + 10x + x2 = 0

Move the constant term to the right:

Add '-750' to each side of the equation.
750 + 10x + -750 + x2 = 0 + -750

Reorder the terms:
750 + -750 + 10x + x2 = 0 + -750

Combine like terms: 750 + -750 = 0
0 + 10x + x2 = 0 + -750
10x + x2 = 0 + -750

Combine like terms: 0 + -750 = -750
10x + x2 = -750

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
10x + 0.25 + x2 = -750 + 0.25

Reorder the terms:
0.25 + 10x + x2 = -750 + 0.25

Combine like terms: -750 + 0.25 = -749.75
0.25 + 10x + x2 = -749.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -749.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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