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x in (-oo:+oo)
1/4 = 8^3*x-4 // - 8^3*x-4
1/4-(8^3*x)+4 = 0
17/4-512*x = 0 // - 17/4
-512*x = -17/4 // : -512
x = -17/4/(-512)
x = 17/2048
x = 17/2048
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