Question

What are the zeros of the polynomial function`f(x)=(x+6)(x+8)(x+15)`?

Answer 1

`x=-6, -8, -15`

Explanation:

We can set `f(x)=0`, then the 3 quantities can each be set to 0:

`f(x)=0=(x+6)(x+8)(x+15)`

and so we can find the 0's:

`(x+6)=0`
`x=-6`

`(x+8)=0`
`x=-8`

`(x+15)=0`
`x=-15`