Question

Find the zeros of x^3-2x^2+9x-18.

Answer 1

Do you knw what zeroes of a polynomials?

Answer 2

Hint:

x^3-2x^2+9x-18

(x^3-2x^2)+(9x-18)

x^2(x-2)+9(x-2)

I'll let you finish factoring

Answer 3

So x=0, x=2, x=-9, and x=2?

Answer 4

what do you get when you fully factor

Answer 5

Will I have to use the quadratic formula?

Answer 6

not really, but you could if you wanted to

Answer 7

but you can get away without using it here

Answer 8

x=2, x=3i, and x=-3i?

Answer 9

that's correct, but do you see how to get it? were you able to factor it fully?

Answer 10

Yes, thank you.

Answer 11

ok that's great, yw