x^2+0.2x+.7=0

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Solution for x^2+0.2x+.7=0 equation:


Simplifying
x2 + 0.2x + 0.7 = 0

Reorder the terms:
0.7 + 0.2x + x2 = 0

Solving
0.7 + 0.2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-0.7' to each side of the equation.
0.7 + 0.2x + -0.7 + x2 = 0 + -0.7

Reorder the terms:
0.7 + -0.7 + 0.2x + x2 = 0 + -0.7

Combine like terms: 0.7 + -0.7 = 0.0
0.0 + 0.2x + x2 = 0 + -0.7
0.2x + x2 = 0 + -0.7

Combine like terms: 0 + -0.7 = -0.7
0.2x + x2 = -0.7

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 = -0.7 + 0.01

Reorder the terms:
0.01 + 0.2x + x2 = -0.7 + 0.01

Combine like terms: -0.7 + 0.01 = -0.69
0.01 + 0.2x + x2 = -0.69

Factor a perfect square on the left side:
(x + 0.1)(x + 0.1) = -0.69

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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