jika diketahui f(x)=5x+3 dan g(x)=x²-3.tentukan (fog)(x)dan (gof)(x)

(FoG) (x) = 5(x^2-3) + 3
=5x^2 - 15 + 3
=5x^2 - 12

(GoF) (x) = (5x+3)^2 -3
=25x^2 + 30x + 9 -3
=25x^2 + 30x + 6

[tex](fog)(x) \\ = 5(x { }^{2} - 3) + 3 \\ = 5x { }^{2} - 15 + 3 \\ = 5x {}^{2} - 12 [/tex]
[tex](gof)(x) \\ = (5x + 3) {}^{2} - 3 \\ = 25x {}^{2} + 30x + 9 - 3 \\ = 25x {}^{2} + 30x + 6[/tex]
semoga membantu;)

jadikan jawaban terbaik yaa;)