10x^2+2x+5=0

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Solution for 10x^2+2x+5=0 equation:


Simplifying
10x2 + 2x + 5 = 0

Reorder the terms:
5 + 2x + 10x2 = 0

Solving
5 + 2x + 10x2 = 0

Solving for variable 'x'.

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

Divide each side by '10'.
0.5 + 0.2x + x2 = 0

Move the constant term to the right:

Add '-0.5' to each side of the equation.
0.5 + 0.2x + -0.5 + x2 = 0 + -0.5

Reorder the terms:
0.5 + -0.5 + 0.2x + x2 = 0 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + 0.2x + x2 = 0 + -0.5
0.2x + x2 = 0 + -0.5

Combine like terms: 0 + -0.5 = -0.5
0.2x + x2 = -0.5

The x term is 0.2x.  Take half its coefficient (0.1).
Square it (0.01) and add it to both sides.

Add '0.01' to each side of the equation.
0.2x + 0.01 + x2 = -0.5 + 0.01

Reorder the terms:
0.01 + 0.2x + x2 = -0.5 + 0.01

Combine like terms: -0.5 + 0.01 = -0.49
0.01 + 0.2x + x2 = -0.49

Factor a perfect square on the left side:
(x + 0.1)(x + 0.1) = -0.49

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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