Question

determine the value of x^2/3 when x=8

Answer 1

You can substitute 8 for x to obtain: 8^2/3 = 8*8/3 = 64/3

Answer 2

are u sure u don't have to do something with the square root symbol

Answer 3

Unless you actually mean x^(2/3) where the exponent is 2/3 in that case you do \[(x^{1/3})^2 = (8^{1/3})^2 = (2)^2 = 4\]

Answer 4

4 is correct \[\sqrt[3]{8^2} or (\sqrt[3]{8})^2\]

Answer 5

@mrjoselson yes thts how my teacher did it in class i was just confused at how @DoritosHero did it

Answer 6

Yes, I'm sorry that I got confused when I thought you meant (1/3)*(x^2)

Answer 7

its ok thank you

Answer 8

thanks to both of u