(2+-1b)(2+-1b)-r^2=

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Solution for (2+-1b)(2+-1b)-r^2= equation: 


Simplifying
(2 + -1b)(2 + -1b) + -1r2 = 0

Multiply (2 + -1b) * (2 + -1b)
(2(2 + -1b) + -1b * (2 + -1b)) + -1r2 = 0
((2 * 2 + -1b * 2) + -1b * (2 + -1b)) + -1r2 = 0
((4 + -2b) + -1b * (2 + -1b)) + -1r2 = 0
(4 + -2b + (2 * -1b + -1b * -1b)) + -1r2 = 0
(4 + -2b + (-2b + 1b2)) + -1r2 = 0

Combine like terms: -2b + -2b = -4b
(4 + -4b + 1b2) + -1r2 = 0

Solving
4 + -4b + 1b2 + -1r2 = 0

Solving for variable 'b'.

The solution to this equation could not be determined.

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