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x in (-oo:+oo)
x^2+3/2 = 100 // - 100
x^2+3/2-100 = 0
1*x^2 = 197/2 // : 1
x^2 = 197/2
x^2 = 197/2 // ^ 1/2
abs(x) = (197/2)^(1/2)
x = (197/2)^(1/2) or x = -(197/2)^(1/2)
x in { (197/2)^(1/2), -(197/2)^(1/2) }
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