Finding local min and max

Question

At what x values does A(x) have a local max: x = __________________

At what x values does A(x) have a local min: x = __________________

Restrict your answers to values 0 < x ≤ 6

Answer 1

local maximums at x=2 and x=6; x=6 is also a global maximum

local minimums at x=0 and x=4; x=4 is a global minimum too

x=0 though is not in the range 0<x < 6