Question

Прошу помогите .
Отдам последние баллы , 68,71 задания .​

Answer 1

Дальше не смогла, с дробями тяжело, sorry

Answer 2

Объяснение:

68.

(3m^7 •n^5)^2=9m^14 •n^10

(-2x^3 •y)^3=-8x^9 •y^3

(-5a^4 •b^2 •c^3)^2=25a^8 •b^4 •c^6

(-1/3 •ab^5)^4=(a^4 •b^20)/81

(13x^5 •y^6 •z^7)^2=169x^10 •y^12 •z^14

(2 1/3 •m^24 •n^18)^3=(343m^72 •n^54)/27

71.

5a^6 •(-3a^2 •b)^2=5a^6 •9a^4 •b^2=45a^(6+4) •b^2=45a^10 •b^2

(-x^4 •y^3)^7 •8x^2 •y^5=-x^28 •y^21 •8x^2 •y^5=-8x^(28+2) •y^(21+5)=-8x^30 •y^26

(-0,1a^2 •bc^5)^2 •100bc^4=1/100 •a^4 •b^2 •c^10 •100bc^4=a^4 •b^(2+1) •c^(10+4)=a^4 •b^3 •c^14

-1 3/5 •m^4 •n^3 •(-1/2 •m^3 •p^6)^3=-8/5 •m^4 •n^3 •(-1/8)m^9 •p^18=1/5 •m^(4+9) •n^3 •p^18=(m^13 •n^3 •p^18)/5

2 1/4 •a^5 •b•(2/3 •ab^3)^3=9/4 •a^5 •b•8/3^3 •a^3 •b^9=(2•3^2)/3^3 •a^(5+3) •b^(1+9)=(2a^8 •b^10)/3

(-5a^3 •b^7)^3 •(-1/5 •a^2 •c^6)^2=-5^3 •a^9 •b^21 •1/5^2 •a^4 •c^12=-5^(3-2) •a^(9+4) •b^21 •c^12=-5a^13 •b^21 •c^12