(3分之2a的7次方b的5次方)÷2分之3a的2次方b的5次
(-3分之2a的7次方b的5次方)÷2分之3a的2次方b的5次方解,必须要有过程,答案是?9分之4a的5次方
(-3分之2a的7次方b的5次方)÷2分之3a的2次方b的5次方 [(-2/3)a^7*b^5]÷[(3/2)a^2*b^5] =[(-2/3)/(3/2)]*a^(7-2)*b^(5-5) =(-4/9)*a^5*b^0 =(-4/9)*a^5*1 =(-4/9)a^5.
{[-(2/3)a^7]b^5}/{[(3/2)a^2]b^5} =-[(2/3)/(3/2)]a^(7-2) =-(4/9)a^5 (b^5)/(b^5)消去
-(2/3) / (3/2) = -(2/3)*(2/3) = -4/9 a^7 / a^2 = a^(7-2) = a^5
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