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a in (-oo:+oo)
832 = (1/2)*a^(8^2) // - (1/2)*a^(8^2)
832-((1/2)*a^(8^2)) = 0
(-1/2)*a^(8^2)+832 = 0
-1/2*a^64 = -832 // : -1/2
a^64 = 1664
a^64 = 1664 // ^ 1/64
abs(a) = 1664^(1/64)
a = 1664^(1/64) or a = -1664^(1/64)
a in { 1664^(1/64), -1664^(1/64) }
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