Question

How do you find all the zeros of f(x)=−4x8−9x7+9x−4 with its multiplicities?

Answer 1

Here we have to find zero of f(x).So we will put —4x8—9x7+9x—4=0.

So,

—4x8—9x7+9x—4=0

—32—63+9x—4=0

9x—99=0

9x=99

x=99/9=11

Hence,11 is a zero of f(x)=—4x8—9x7+9x—4