25x^2-16x+220=0

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Solution for 25x^2-16x+220=0 equation:


Simplifying
25x2 + -16x + 220 = 0

Reorder the terms:
220 + -16x + 25x2 = 0

Solving
220 + -16x + 25x2 = 0

Solving for variable 'x'.

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

Divide each side by '25'.
8.8 + -0.64x + x2 = 0

Move the constant term to the right:

Add '-8.8' to each side of the equation.
8.8 + -0.64x + -8.8 + x2 = 0 + -8.8

Reorder the terms:
8.8 + -8.8 + -0.64x + x2 = 0 + -8.8

Combine like terms: 8.8 + -8.8 = 0.0
0.0 + -0.64x + x2 = 0 + -8.8
-0.64x + x2 = 0 + -8.8

Combine like terms: 0 + -8.8 = -8.8
-0.64x + x2 = -8.8

The x term is -0.64x.  Take half its coefficient (-0.32).
Square it (0.1024) and add it to both sides.

Add '0.1024' to each side of the equation.
-0.64x + 0.1024 + x2 = -8.8 + 0.1024

Reorder the terms:
0.1024 + -0.64x + x2 = -8.8 + 0.1024

Combine like terms: -8.8 + 0.1024 = -8.6976
0.1024 + -0.64x + x2 = -8.6976

Factor a perfect square on the left side:
(x + -0.32)(x + -0.32) = -8.6976

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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