Question

Find all zeros of the function
f(x)=8(x-4)^4(9x+2)(x^2-9)and their multilpicties.

Answer 1

f(x)=8(x-4)^4(9x+2)(x^2-9)
=8(x-4)^4(9x+2)(x-3)(x+3)
So the zeros are
x=4 ; multiplicity 4
x=-2/9 multiplicity 1
x=1 multiplicity 1
x=-1 multiplicity 1

Answer 2

Do you mean 3 and -3 instead of 1?

Answer 3

Yes, he does.

Answer 4

ty!