0.125^49x2^149+9^998x(-1/3)^1997
=(1/8)^49x2^149-(3^2)^998x(1/3)^1997
=[2^(-3)]^49x2^149-3^1996x(3)^(-1997)
=2^(-147+149)-3^(1996-1997)
=2^2-3^(-1)
=4-1/3
=11/3
0.125^49x2^149+9^998x(-1/3)^1997
=(1/8)^49x2^149-(3^2)^998x(1/3)^1997
=[2^(-3)]^49x2^149-3^1996x(3)^(-1997)
=2^(-147+149)-3^(1996-1997)
=2^2-3^(-1)
=4-1/3
=11/3