r^2+16=2+r

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Solution for r^2+16=2+r equation:


Simplifying
r2 + 16 = 2 + r

Reorder the terms:
16 + r2 = 2 + r

Solving
16 + r2 = 2 + r

Solving for variable 'r'.

Reorder the terms:
16 + -2 + -1r + r2 = 2 + r + -2 + -1r

Combine like terms: 16 + -2 = 14
14 + -1r + r2 = 2 + r + -2 + -1r

Reorder the terms:
14 + -1r + r2 = 2 + -2 + r + -1r

Combine like terms: 2 + -2 = 0
14 + -1r + r2 = 0 + r + -1r
14 + -1r + r2 = r + -1r

Combine like terms: r + -1r = 0
14 + -1r + r2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-14' to each side of the equation.
14 + -1r + -14 + r2 = 0 + -14

Reorder the terms:
14 + -14 + -1r + r2 = 0 + -14

Combine like terms: 14 + -14 = 0
0 + -1r + r2 = 0 + -14
-1r + r2 = 0 + -14

Combine like terms: 0 + -14 = -14
-1r + r2 = -14

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 = -14 + 0.25

Reorder the terms:
0.25 + -1r + r2 = -14 + 0.25

Combine like terms: -14 + 0.25 = -13.75
0.25 + -1r + r2 = -13.75

Factor a perfect square on the left side:
(r + -0.5)(r + -0.5) = -13.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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