2.5x^2-x+1=0

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Solution for 2.5x^2-x+1=0 equation:


Simplifying
2.5x2 + -1x + 1 = 0

Reorder the terms:
1 + -1x + 2.5x2 = 0

Solving
1 + -1x + 2.5x2 = 0

Solving for variable 'x'.

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

Divide each side by '2.5'.
0.4 + -0.4x + x2 = 0

Move the constant term to the right:

Add '-0.4' to each side of the equation.
0.4 + -0.4x + -0.4 + x2 = 0 + -0.4

Reorder the terms:
0.4 + -0.4 + -0.4x + x2 = 0 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + -0.4x + x2 = 0 + -0.4
-0.4x + x2 = 0 + -0.4

Combine like terms: 0 + -0.4 = -0.4
-0.4x + x2 = -0.4

The x term is -0.4x.  Take half its coefficient (-0.2).
Square it (0.04) and add it to both sides.

Add '0.04' to each side of the equation.
-0.4x + 0.04 + x2 = -0.4 + 0.04

Reorder the terms:
0.04 + -0.4x + x2 = -0.4 + 0.04

Combine like terms: -0.4 + 0.04 = -0.36
0.04 + -0.4x + x2 = -0.36

Factor a perfect square on the left side:
(x + -0.2)(x + -0.2) = -0.36

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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