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b in (-oo:+oo)
(1/4)*(2*b-12)+b^2 = (1/2)*b+22 // - (1/2)*b+22
(1/4)*(2*b-12)+b^2-((1/2)*b)-22 = 0
(1/4)*(2*b-12)+b^2+(-1/2)*b-22 = 0
1/4*(2*b-12)+b^2-b/2-22 = 0
(1/4*2*(2*b-12))/2+(2*b^2)/2-b/2+(-22*2)/2 = 0
1/4*2*(2*b-12)+2*b^2-b-22*2 = 0
2*b^2+b-b-44-6 = 0
2*b^2-44-6 = 0
2*b^2-50 = 0
(2*b^2-50)/2 = 0
(2*b^2-50)/2 = 0 // * 2
2*b^2-50 = 0
2*b^2 = 50 // : 2
b^2 = 25
b^2 = 25 // ^ 1/2
abs(b) = 5
b = 5 or b = -5
b in { 5, -5 }
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