Question

How do you find all the zeros of `F(x) = x^4 - 16x^2`?

Answer 1

Zeros: 0 multiplicity 2, ±4

Explanation:

`[1]" "f(x)=x^4-16x^2`

Factor.

`[2]" "f(x)=x*x*(x^2-16)`

`[3]" "f(x)=x*x*(x+4)*(x-4)`

Find all values of `x` that will make `f(x)` zero.

Zeros: 0 multiplicity 2, -4, 4