diketahui fx=x-3 dan gof x=(x+3)^2 nilai g(-4)=?

gof(x) = (x + 3)²
g(x-3) = (x + 3)²
misal p = x - 3
x = p + 3
g(p) = (p + 3 + 3)²
g(p) = (p + 6)²
g(-4) = (-4 + 6)² = (2)² = 4