Some one help me with this asap

Marya wants to factor the polynomial 36x^3 -22x^2 - 144x.which term can she add to the polynomial that would not change its grestest common factor? check all that apply

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?