Use the distributive property to remove the parentheses -3(-2v+u-6)

Really need on these. i have no idea what to do

The function models the number of accidents

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.