r^2-r+36=0

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Solution for r^2-r+36=0 equation:


Simplifying
r2 + -1r + 36 = 0

Reorder the terms:
36 + -1r + r2 = 0

Solving
36 + -1r + r2 = 0

Solving for variable 'r'.

Begin completing the square.

Move the constant term to the right:

Add '-36' to each side of the equation.
36 + -1r + -36 + r2 = 0 + -36

Reorder the terms:
36 + -36 + -1r + r2 = 0 + -36

Combine like terms: 36 + -36 = 0
0 + -1r + r2 = 0 + -36
-1r + r2 = 0 + -36

Combine like terms: 0 + -36 = -36
-1r + r2 = -36

The r term is -1r.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1r + 0.25 + r2 = -36 + 0.25

Reorder the terms:
0.25 + -1r + r2 = -36 + 0.25

Combine like terms: -36 + 0.25 = -35.75
0.25 + -1r + r2 = -35.75

Factor a perfect square on the left side:
(r + -0.5)(r + -0.5) = -35.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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