ANSWER ASAP WILL MARK BRAINLIEST

Find the third,fifth and seventh term sequence described by each rule a(n)=n+1

Can someone explain to me how to do

Which polynomial equation of least degree has -2, -2, 3, and 3 as four of its roots? (x + 2)(x - 3) = 0 (x - 2)-2(x + 3)3 = 0 (x-2 + 2)(x2- 3) = 0 (x + 2)2(x - 3)2 = 0