Question

Which polynomial function has a leading coefficient of 3 and roots –4, i, and 2, all with multiplicity 1?

f(x) = 3(x + 4)(x – i)(x – 2)
f(x) = (x – 3)(x + 4)(x – i)(x – 2)
f(x) = (x – 3)(x + 4)(x – i)(x + i)(x – 2)
f(x) = 3(x + 4)(x – i)(x + i)(x – 2)

Answer 1

The first one

f(x) = 3(x+4)(x-i)(x-2)

(coefficient goes outside the parenthesis)
(roots are written in the polynomial functions always in reverse!)

Answer 2

f x fx3 fx 6 de oarece este inmultire