Question

What are the REAL zeros of the polynomial function `t^3-3t`?

Answer 1

`t=0, +-sqrt3`

Explanation:

`t^3-3t`

Factor out a t:
`t(t^2-3)=0`

Set each factor equal to 0:
`t=0`
`t^2-3=0`
`t^2=3`
`t= +-sqrt3`

`t=0, +-sqrt3`

Graph with zeroes graph{x^3-3x [-10, 10, -5, 5]}