Question

find the zeros. -root2, -1, -4/5

Answer 1

I'm going to guess those ARE the zeros. What's the real question?

Answer 2

For any 3 zeros: a, b, and c,
the polynomial of a least degree with these roots is:

\(\Large\color{black}{ \displaystyle f(x)=(x-{\rm \color{red}{a}})(x-{\rm \color{green }{b}})(x-{\rm \color{blue}{c}}) }\)