Convert roots to factored form

Question

I have a problem here that gives me the root of -3 with the multiplicty of 2 and a root of 6 with the multiplicty of 2. I also have the y-intercept of -324. I tried to do it and I got -1(x+3)^2(x-6)^2 but it says it is incorrect for factored form.

Answer 1

No sure. Your work looks correct. perhaps they want you to distribute the -1 to the (x+3) term to give yo

(3-x)^2 (x-6)^2