(4/3x)^50 *(3/4 x^3)^51
=(4/3x)^50*(3/4 x^3)^50*(3/4 x^3)
=[(4/3x)^50*(3/4 x^3)^50]*(3/4 x^3)
=[(4/3x)*(3/4 x^3)]^50*(3/4 x^3)
=x^100*(3/4 x^3)=3x^103/4
注:这里的(4/3x)≠(4x/3)
(4/3x)^50 · (3/4 x^3)^51=(4/3x)^50 · (3x/4)^50*3/4*(x^2)^51=3*x^102/4
(4/3x)^50·(3/4 x^3)^50·(3/4 x^3)=3/4x^203
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