Factor this trinomial completely.

2x2 + 6x + 4

a. 2(x - 2)(x + 1)
b. 2(x + 2)(x - 1)
c. 2(x + 2)(x + 1)
d. 2(x - 2)(x - 1)

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.