Which expressions are equivalent to (a^2-16(a+4)? select the three equivalent expressions
a.) a^3-64
b.) (a-4)^3
c.) (a+4)^3
d.) (a+4)^2(a-4)
e.) (a-4)^2(a+4)
f.) [(a)^2-(4^2)](a+4)
g.) (a-4)(a+4)(a+4)