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x in (-oo:+oo)
1/4 = 16^2*x // - 16^2*x
1/4-(16^2*x) = 0
1/4-256*x = 0 // - 1/4
-256*x = -1/4 // : -256
x = -1/4/(-256)
x = 1/1024
x = 1/1024
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