Question

2- resolva as potências
ME AJUDEM​

Answer 1

Resposta:

$a) {5}^{7} \times {5}^{2} = {5}^{7 + 2} = {5}^{9} \\ b) {3}^{9} \div {3}^{4} = {3}^{9 - 4} = {3}^{5} \\ c) {8}^{5} \div {8}^{ - 3} = {8}^{5 + 3} = {8}^{8} \\ d) {7}^{5} - {7}^{3} = ( {7}^{2} - 1) \times {7}^{3} = (49 - 1) \times {7}^{3} = 48 \times 343 = 16464 \\ e) {7}^{6 - 5} = 7 \\ d)( {7}^{3} )^{2} = {7}^{6}$