Answer:
3x^2+6x-11
Step-by-step explanation:
g(f(x)) = g(x^2+2x-4) = 3(x^2+2x-4)+1 = 3x^2+6x-11
n - 7 = 21, n= 28 should be right bc the difference of 28 and 7 is 21
hi I cant answer idk why