Question

Find all the zeros of the equation.
-3x^4 + 27x^2 + 1200 = 0

Fan and medal will be given to whomever can help! Thank you:)

Answer 1

All of the zeros?

Answer 2

What do you mean?

Answer 3

Idk, that's what the problem is asking.

Answer 4

Can you find all the zeros of this?

-3x^2 + 27x + 1200 = 0

Answer 5

No, I'm behind in my class and don't know what to do. I'm trying my hardest just to catch up.

Answer 6

Ok. Um...

Answer 7

First, and maybe it's not obvious, is everything is divisible by 3 or -3.

-3x^2 + 27x + 1200 = 0

x^2 - 9x - 400 = 0

Can you solve this quadratic equation?
Completing the Square?
Factoring?
Quadratic Equation?
Graphing?