advanced functions questions

please indicate which question you are answering, and thanks for your help

1. Solve the following equation:

(x+1)^2 - 3(x+1) = 0

2. What is the maximum possible number of turning points for each of the following functions?

a) linear function

b) quadratic function

c) cubic function

d) quartic function

3. For the function f(x) = (x-4)(x+1)(x-1)

a) find the domain and range

b) find the real zeros, to the nearest tenth necessary

c) the y-intercepts

d) the end behaviour (what is this?)

e) any symmetry

f) the number of turning points