(1/5)^m * (1/4)^18 = 1/2(10)^35 (1/5)^m * (1/2)^(2*18) = 1/2(10)^35 (1/5)^m * (1/2)^36 = 1/2(10)^35 1/2 [(1/5)^m * (1/2)^35] = 1/2(10)^35 (1/5)^m * (1/2)^35 = 1/(10^35) (1/5)^m * (1/2)^35 = 1/2( (2^35) * (5^35)) (1/5)^m = 1/(5^35) m = 35 why did the line 5: (1/5)^m * (1/2)^35 = 1/(10^35) had "...