## anonymous 3 years ago What are the zeros of the polynomial function: f(x) = (x - 4)(2x + 1)(x + 7)?

1. harsimran_hs4

you have already done it yourself (x - 4)(2x + 1)(x + 7) = 0 for what value of x?

2. ParthKohli

Either $$x - 4 = 0 \quad \Rightarrow \quad x = 0 + 4$$. Or $$2x + 1 = 0 \quad \Rightarrow \quad \cdots$$

3. harsimran_hs4

put each factor separately equal to 0 and try finding the answer just as @ParthKohli has done

4. anonymous

$4, -\frac{ 1 }{ 2 }, and -7$ right?

5. ParthKohli

Yes.

6. anonymous

Thanks for the help!

7. ParthKohli

No problem!