16r^2-8r+11=0

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Solution for 16r^2-8r+11=0 equation:


Simplifying
16r2 + -8r + 11 = 0

Reorder the terms:
11 + -8r + 16r2 = 0

Solving
11 + -8r + 16r2 = 0

Solving for variable 'r'.

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

Divide each side by '16'.
0.6875 + -0.5r + r2 = 0

Move the constant term to the right:

Add '-0.6875' to each side of the equation.
0.6875 + -0.5r + -0.6875 + r2 = 0 + -0.6875

Reorder the terms:
0.6875 + -0.6875 + -0.5r + r2 = 0 + -0.6875

Combine like terms: 0.6875 + -0.6875 = 0.0000
0.0000 + -0.5r + r2 = 0 + -0.6875
-0.5r + r2 = 0 + -0.6875

Combine like terms: 0 + -0.6875 = -0.6875
-0.5r + r2 = -0.6875

The r term is -0.5r.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5r + 0.0625 + r2 = -0.6875 + 0.0625

Reorder the terms:
0.0625 + -0.5r + r2 = -0.6875 + 0.0625

Combine like terms: -0.6875 + 0.0625 = -0.625
0.0625 + -0.5r + r2 = -0.625

Factor a perfect square on the left side:
(r + -0.25)(r + -0.25) = -0.625

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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