Question

Записати вирази у вигляді степеня: (-9)^11 * на (-9)^13;0.9 ^25 :0.9^5;(а^9)^3;4^7*2^7.​

Answer 1

$( - 9) ^{11} \times {( - 9)}^{13} = ( - 9) ^{24} \\ {0.9}^{25} \div {0.9}^{5} = {0.9}^{20}$
${ {(a}^{9}) }^{3} = {a}^{27} \\ {4}^{7} \times {2}^{7} = {2}^{14} \times {2}^{7} = {2}^{98}$

Answer 2

(-9)^11 * (-9)^13 can be written as (-9)^(11+13) = (-9)^24.

0.9^25 : 0.9^5 can be written as 0.9^(25-5) = 0.9^20.

(а^9)^3 can be written as а^(9*3) = а^27.

4^7 * 2^7 can be written as (4*2)^7 = 8^7.