Question

-5 корень кубический из 4- корень кубический из 256+ корень кубический из 4/125

Answer 1

$-5sqrt[3] {4}-sqrt [3]{256}+sqrt[3] {frac{4}{125}}=\\ -5sqrt[3] {4}-sqrt [3]{64*4}+frac{sqrt[3] {4}}{sqrt[3] {125}}=\\ -5sqrt[3] {4}-sqrt [3]{64}*sqrt[3] {4}+frac{sqrt[3] {4}}{sqrt[3] {5^3}}=\\ -5sqrt[3] {4}-sqrt [3]{4^3}*sqrt[3] {4}+frac{sqrt[3] {4}}{5}=\\ -5sqrt[3] {4}-4sqrt[3] {4}+0.2sqrt[3] {4}=-8.8sqrt[3] {4}$