Bantu jawab yang B kakak​

Jawaban:

a) 3^10

b) 81/30625

Penjelasan dengan langkah-langkah:

a) 9^7 : 9^5 x (3^3)^2

= 9^2 x 3^6

= 3^4 x 3^6

= 3^10

= 59049

b) (3/4)^2 x (2/5)^4 x (3/7)^2

= 9/16 x 16/625 x 9/49

= 9 x 1/625 x 9/49

= 81/30625