Question

Решите пожалуйста★★★★★★★★★★

Answer 1

д)(b^7)^3:(b^5)^4=b^21:b^20=b
e)(n^2*(n^3)^4)/n^7=(n^2*n^12)/n^7=n^14:n^7=n^7
2)(3^10*(3^2)^3)/(3*(3^5)^2)=3^16/3^11=3^5=243

Answer 2

$(b^7)^3:(b^5)^4=b^{7*3}: b^{5*4}=b^{21}:b^{20}=b^{21-20}=b^1=b$

$frac{n^2*(n^3)^{4}}{n^7}= frac{n^2*n^{3*4}}{n^7} = frac{n^2*n^{12}}{n^7}= frac{n^{2+12}}{n^7}= frac{n^{14}}{n^7}=n^{14-7}=n^7$

$frac{3^{10}*(3^2)^{3}}{3*(3^5)^2}= frac{3^{10}*3^{2*3}}{3*3^{5*2}} = frac{3^{10}*3^{6}}{3*3^{10}}= frac{3^{10+6}}{3^{1+10}}= frac{3^{16}}{3^{11}}=3^{16-11}=3^5=243$