Question

How do you find all the zeros of `f(x) = (x + 3)(x – 1)(x – 5)`?

Answer 1

`{-3,1,5}` are zeros of #f(x)=(x+3)x-1)(x-5)

Explanation:

Zeros of `f(x)` are those values of `x`, which make `f(x)=0`.

As `f(x)=(x+3)x-1)(x-5)`, `f(x)` will be zero, if

`x+3)=0` or `x-1)=0` or `(x-5)=0` i.e.

`x=-3` or `x=1` or `x=5`

Hence, `{-3,1,5}` are zeros of `f(x)=(x+3)x-1)(x-5)`