-(3mn^2)^2·(-n^5)^3(5/4)^100*(4/5)101
-(3mn^2)^2·(-n^5)^3
(5/4)^100*(4/5)101
(3mn^2)^2·(-n^5)^3=9(m^2)(n^4)-n^15
第二道题是抄漏了一个符号吧
(5/4)^100*(4/5)^101=(5/4)^100*(4/5)100*(4/5)=(5/4*4/5)^100*(4/5)=4/5-(3mn^2)^2·(-n^5)^3
= -9m^2n^4*(-n^15)
=9m^2n^19
(5/4)^100*(4/5)101
=(5/4)^100*(4/5)100*(4/5)
=[(5/4)^100*(4/5)100]*(4/5)
=[(5/4)*(4/5)]^100*(4/5)
=1^100*(4/5)
=1*(4/5)
=4/5
-(3mn^2)^2·(-n^5)^3
= -9m^2n^4*(-n^15)
=9m^2n^19
(5/4)^100*(4/5)101
=(5/4)^100*(4/5)100*(4/5)
=[(5/4)^100*(4/5)100]*(4/5)
=[(5/4)*(4/5)]^100*(4/5)
=1^100*(4/5)
=1*(4/5)
=4/5
1.(3mn^2)^2·(-n^5)^3= -9m^2n^4*(-n^15)=9m^2n^192.(5/4)^100*(4/5)101=(5/4)^100*(4/5)100*(4/5)=[(5/4)^100*(4/5)100]*(4/5)=[(5/4)*(4/5)]^100*(4/5)=1^100*(4/5)=4/5
(3mn^2)^2·(-n^5)^3=9(m^2)(n^4)-n^15
第二道题是抄漏了一个符号吧
(5/4)^100*(4/5)^101=(5/4)^100*(4/5)100*(4/5)=(5/4*4/5)^100*(4/5)=4/5