x^2-1.6x+0.8=0

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Solution for x^2-1.6x+0.8=0 equation: 


Simplifying
x2 + -1.6x + 0.8 = 0

Reorder the terms:
0.8 + -1.6x + x2 = 0

Solving
0.8 + -1.6x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-0.8' to each side of the equation.
0.8 + -1.6x + -0.8 + x2 = 0 + -0.8

Reorder the terms:
0.8 + -0.8 + -1.6x + x2 = 0 + -0.8

Combine like terms: 0.8 + -0.8 = 0.0
0.0 + -1.6x + x2 = 0 + -0.8
-1.6x + x2 = 0 + -0.8

Combine like terms: 0 + -0.8 = -0.8
-1.6x + x2 = -0.8

The x term is -1.6x.  Take half its coefficient (-0.8).
Square it (0.64) and add it to both sides.

Add '0.64' to each side of the equation.
-1.6x + 0.64 + x2 = -0.8 + 0.64

Reorder the terms:
0.64 + -1.6x + x2 = -0.8 + 0.64

Combine like terms: -0.8 + 0.64 = -0.16
0.64 + -1.6x + x2 = -0.16

Factor a perfect square on the left side:
(x + -0.8)(x + -0.8) = -0.16

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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