Question

Urgente me ajudem 32⅗ - 27⅔ = A) (-1)-¹/¹⁵ B) -1 C) 5½ D) 5-¹/¹⁵

Answer 1

Explicação passo-a-passo:

• $\sf 32^{\frac{3}{5}}=\sqrt[5]{32^3}=\sqrt[5]{(2^5)^3}=\sqrt[5]{(2^3)^5}=2^3=8$

• $\sf 27^{\frac{2}{3}}=\sqrt[3]{27^2}=\sqrt[3]{(3^3)^2}=\sqrt[3]{(3^2)^3}=3^2=9$

Assim

$\sf 32^{\frac{3}{5}}-27^{\frac{2}{3}}=8-9$

$\sf 32^{\frac{3}{5}}-27^{\frac{2}{3}}=-1$

Letra B