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^ - степень
[ 4^(4m-5) * (1/6)^ (-2m) ] / [96 ^ (2m-3)] =
= [ 4^(4m -5) * 6^(2m) ] / [ (16*6)^(2m-3) ] =
= [ 4^(4m-5) * 6^(2m) ] / [ (4^2)^(2m-3 ) * 6^(2m-3) ]=
= 4^(4m-5 - (4m - 6) ) * 6^(2m - (2m-3))=
= 4^(4m -5 -4m +6) * 6^(2m-2m+3) =
= 4^1 * 6^3 = 4 *216 = 864
2/5x + 3/25x = 1/3 - 2/3
13/25x = - 1/3
13x / 25 = - 1/3
13x × 3 = - 1 × 25
39x = - 25
x = - 25/39
Y=4/5*3
Y=12/5
1/8:1 1/4=1/8 *4/5=1/10