Question

What are the real or imaginary solutions of the polynomial equation? x3 – 8 =0

Answer 1

well, what you've got here is \[x^3 = 8\] so x equals 2. The solution is unique, so there is no other solution

Answer 2

That's not true, there are two complex solutions as well...

Answer 3

sorry, of course

Answer 4

Sure the question is right?

Answer 5

Is x3 == 3x??

Answer 6

Perfectly valid question. Use the difference of cubes formula provided above by @Hero and then use the quadratic formula on the second part to determine the two complex roots.