Question

resolva as expressões:​

Answer 1

Resposta:

a)$\frac{2^{9} . 2^{2} }{8^{3}} = \frac{2^{11}}{8^{3}} = \frac{2^{11}}{(2^{3})^{3}} = \frac{2^{11}}{2^{9}} = 2^{2}$

b)$\frac{3^{2} . 27^{2} . 9^{2}}{3^{3}} = \frac{3^{2} . (3^{3})^{2} . (3^{2})^{2}}{3^{3}} = \frac{3^{2} . 3^{6} . 3^{4} } {3^{3}} = \frac{3^{12}}{3^{3}} = 3^{9}$