81x^2-10x+25=0

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Solution for 81x^2-10x+25=0 equation:


Simplifying
81x2 + -10x + 25 = 0

Reorder the terms:
25 + -10x + 81x2 = 0

Solving
25 + -10x + 81x2 = 0

Solving for variable 'x'.

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

Divide each side by '81'.
0.3086419753 + -0.1234567901x + x2 = 0

Move the constant term to the right:

Add '-0.3086419753' to each side of the equation.
0.3086419753 + -0.1234567901x + -0.3086419753 + x2 = 0 + -0.3086419753

Reorder the terms:
0.3086419753 + -0.3086419753 + -0.1234567901x + x2 = 0 + -0.3086419753

Combine like terms: 0.3086419753 + -0.3086419753 = 0.0000000000
0.0000000000 + -0.1234567901x + x2 = 0 + -0.3086419753
-0.1234567901x + x2 = 0 + -0.3086419753

Combine like terms: 0 + -0.3086419753 = -0.3086419753
-0.1234567901x + x2 = -0.3086419753

The x term is -0.1234567901x.  Take half its coefficient (-0.06172839505).
Square it (0.003810394755) and add it to both sides.

Add '0.003810394755' to each side of the equation.
-0.1234567901x + 0.003810394755 + x2 = -0.3086419753 + 0.003810394755

Reorder the terms:
0.003810394755 + -0.1234567901x + x2 = -0.3086419753 + 0.003810394755

Combine like terms: -0.3086419753 + 0.003810394755 = -0.304831580545
0.003810394755 + -0.1234567901x + x2 = -0.304831580545

Factor a perfect square on the left side:
(x + -0.06172839505)(x + -0.06172839505) = -0.304831580545

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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