104:{12²:36+4×[7²-5²+2³×5²:(2²)⁴]}=
[tex]104:( 12^{2} :36+4*[ 7^{2} - 5^{2} + 2^{3} * 5^{2} : ( 2^{2} )^{4} ]) = \\ =
104:[ (4*3)^{2} :( 3^{2}*4 )+4*( 49 - 25 + 2^{3} * 5^{2} : 2^{8} )] = \\ =
104:[ (4^{2}*3^{2}) :( 3^{2}*4 )+4*( 24 + 2^{-5} * 5^{2} )] = \\ =
104:[ 4^{2} :4+4*( 24 + \frac{1}{2^{5}} * 5^{2} )] = \\ =
104:[ 4+4*( 24 + \frac{5^{2}}{32} )] = \\ =
104:[ 4*(1+ 24 + \frac{25}{32} )] = \\ =
104:4*(25 + \frac{25}{32}) = \\ =
26*[25*(1 + \frac{1}{32})] = \\ =
26*25* \frac{32+1}{32} = \\ =
650* \frac{33}{32}=[/tex]
[tex]=\frac{650*33}{32} = \\ =
\frac{21450}{32} = \\ =
\frac{10725}{16} = [/tex]