Question

scrie ca putere: 3 la puterea13×9la puterea6; 25la puterea10÷5la puterea15; 8la puterea20÷4la puterea30. ajutati-ma va rog frumos, dau coroana!​

Answer 1

Răspuns:

${3}^{13} \times {9}^{6} = \\ {3}^{13} \times ( {3}^{2} )^{6} = \\ {3}^{13} \times {3}^{12} = {3}^{25} \\ \\ {25}^{10} \div {5}^{15} = \\ ( {5}^{2} ) {}^{10} \div {5}^{15} = \\ {5}^{20} \div {5}^{15} = {5}^{5} \\ \\ {8}^{20} \div {4}^{30} = \\ ( {2}^{3} ) {}^{20} \div ( {2}^{2} ) ^{30} = \\ {2}^{60} \div {2}^{60} = 1$

sper că te-am ajutat!!!