Question

Efetue as multiplicações:​

Answer 1

Resposta:

Olá! ^-^

a) $\sqrt[3]{5} . \sqrt[3]{6} = \sqrt[3]{5.6} =\sqrt[\\3]{30}$

b) $\sqrt{2}. \sqrt{6} .\sqrt{3}= \sqrt{2.6.3} =\sqrt{36} = 6$

c) $\sqrt{5} . (1+\sqrt{5} )= \sqrt{5} .1+ \sqrt{5}. \sqrt{5}= \sqrt{5}+ \sqrt{25} = \sqrt{5} +5$

d) $\sqrt{2} . \sqrt{8}= \sqrt{16} = 4$

e) $\sqrt[3]{4} . \sqrt[3]{6} = \sqrt[3]{4.6} = \sqrt[3]{24} = \sqrt[3]{2^3. 3} = 2\sqrt[3]{3}$

f)

$(3\sqrt{2}-2). (\sqrt{2} +3)= 3\sqrt{2}. \sqrt{2}+ 3\sqrt{2}. 3-2.\sqrt{2} - 2.3= 3.\sqrt{4}+ 9\sqrt{2} - 2\sqrt{2}-6= 3.2+7\sqrt{2} -6= 6+7\sqrt{2}-6= 7\sqrt{2}$

Espero ter ajudado! :))