Question

2) f(x)=5 x²-4 ; g(x)=1-x. Find g⁰f.
a) -5 x²+5
b) 5 x²-5
c) 5 x²-10 x+1
d) -x²-1
4) f(x)=x+1 ; g(x)=x³+5. Find f⁰g.