Question

Find all the real cube roots of -64
a)-4
b)4
c)-8
d)8
would it be D?

Answer 1

a)-4

Answer 2

-4*-4*-4=-64

Answer 3

-4

Answer 4

Nope, you need to find a number, which you cube and you would get -64. As you see, it is with "-". So the answer is a or b. try to multiply (-8)*(-8)*(-8) and then try to multiply (-4)*(-4)*(-4). And you will see

Answer 5

I see! -4! Thank you that was really easy but i am really slow in math thank you all!