Question

va rog ajutati ma dau coronita​

Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

$a=(-9)^7*3^{10}:(-3)^{17}\\a=-9^7*3^{10}:(-3^{17})\\a=(3^2)^7*3^{10}:3^{17}\\a=3^{14}*3^{10}:3^{17}\\a=3^{24}:3^{17}\\a=3^7$