tentujan fungsi(f°g)(x)dan (g°f)(x)dari fungsi f(x)=√x-3 dan g(x)=5xpangkat 2 +4

fog(x) = √(5x² + 4 - 3)
= √(5x² + 1)
gof(x) = 5(√x-3)² + 4
= 5(x - 3) + 4
= 5x - 15 + 3
= 5x - 12