Question

solve x^6+9x^4+24x^2+16=0

Answer 1

1) It's not an equation. There is nothing to solve.
2) If you mean "= 0", there are no positive Real Zeros. How do I know by just looking?
3) There are also no negative Real Zeros. Again, just by looking.

Answer 2

what will be the roots for this?

Answer 3

Already answered that. The task is for you to tell me how you can make the same determination.

Answer 4

Do we get to use Complex Numbers? If we have to stick with Reals, we should stop looking.