4x^2+2.6x+1=0

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Solution for 4x^2+2.6x+1=0 equation:


Simplifying
4x2 + 2.6x + 1 = 0

Reorder the terms:
1 + 2.6x + 4x2 = 0

Solving
1 + 2.6x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
0.25 + 0.65x + x2 = 0

Move the constant term to the right:

Add '-0.25' to each side of the equation.
0.25 + 0.65x + -0.25 + x2 = 0 + -0.25

Reorder the terms:
0.25 + -0.25 + 0.65x + x2 = 0 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + 0.65x + x2 = 0 + -0.25
0.65x + x2 = 0 + -0.25

Combine like terms: 0 + -0.25 = -0.25
0.65x + x2 = -0.25

The x term is 0.65x.  Take half its coefficient (0.325).
Square it (0.105625) and add it to both sides.

Add '0.105625' to each side of the equation.
0.65x + 0.105625 + x2 = -0.25 + 0.105625

Reorder the terms:
0.105625 + 0.65x + x2 = -0.25 + 0.105625

Combine like terms: -0.25 + 0.105625 = -0.144375
0.105625 + 0.65x + x2 = -0.144375

Factor a perfect square on the left side:
(x + 0.325)(x + 0.325) = -0.144375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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