Question

alguém pode me ajudar pfv​?

Answer 1

a) $\sqrt{49}+\sqrt{16} = \sqrt{7^2}+\sqrt{4^2}=7+4=11$

b)$\sqrt[3]{8}+\sqrt[4]{16}=\sqrt[3]{2^3}+\sqrt[4]{2^4}=2+2=4$

c)$-5\sqrt{9} +2\sqrt{169}=-5\sqrt{3^2} +2\sqrt{13^2}=-5*3+2*13=11$

d)

$\sqrt{18} +2\sqrt{50}=\sqrt{9*2} +2\sqrt{2*25}=3\sqrt{2} +2*5\sqrt{2}\\=3\sqrt{2} +10\sqrt{2}=13\sqrt{2}$

e) $10\sqrt[3]{2}+4\sqrt[3]{2} -3\sqrt[3]{2}=11\sqrt[3]{2}$