Question

Axercitiul de jos
Cel de la d) pana la o) vă rog urgentt

Answer 1

$1) \\ \\ d) \\ \\ {3}^{23} : {3}^{13} = {3}^{23 - 13} = {3}^{10}$

$e) \\ \\ {7}^{20} : {7}^{13} = {7}^{20 - 13} = {7}^{7}$

$f) \\ \\ {5}^{19} : 5 = {5}^{19} : {5}^{1} = {5}^{19 - 1} = {5}^{18}$

$g) \\ \\ { {(3}^{2}) }^{4} = {3}^{2 \times 4} = {3}^{8}$

$h) \\ \\ { {(2}^{3}) }^{4} = {2}^{3 \times 4} = {2}^{12}$

$i) \\ \\ { {(5}^{6}) }^{7} = {5}^{6 \times 7} = {5}^{42}$

$j) \\ \\ {2}^{9} \times {7}^{9} = {(2 \times 7)}^{9} = {14}^{9}$

$k) \\ \\ {5}^{12} \times {3}^{12} = {(5 \times 3)}^{12} = {15}^{12}$

$l) \\ \\ {7}^{21} \times {5}^{21} = {(7 \times 5)}^{21} = {35}^{21}$

$m) \\ \\ {20}^{15} : {4}^{15} = {(20 : 4)}^{15} = {5}^{15}$

$n) \\ \\ {35}^{36} : {7}^{36} = {(35 : 7)}^{36} = {5}^{36}$

$o) \\ \\ {21}^{31} : {3}^{31} = {(21 : 3)}^{31} = {7}^{31}$