Question

2/3 . 8^2/3 - 2/3.8^-2/3 é igual a?

alguém me ajuda pfvvvvvv, urgente​

Answer 1

(2/3) * 8^(2/3) - (2/3) * 8^(-2/3)

(2/3) .[8^(2/3) - 8^(-2/3)

(2/3) .(3^√8² - 3^√8^(-2)

(2/3) .(4 - 3^√1/8²)

(2/3) .(4 - 1/4)

(2/3) .(16/4 - 1/4)

(2/3) *(15/4)

(30/12)

(15/6)

2,5

espero ter ajudado U^ｪ^U