Jika f(x) = X2 + 2X - 3 dan g(x) = 3X - 4 Nilai (f°g) (-2) = ...

f o g(x) = [tex](3x-4)^{2} + 2(3x-4) - 3[/tex]
f o g(x) = [tex]9 x^{2} - 24x + 16 + 6x - 8 - 3[/tex]
f o g(x) = [tex]9 x^{2} - 18x + 5[/tex]
f o g(-2) = [tex]9 (-2)^{2} - 18(-2) + 5 [/tex]
f o g(-2) = [tex]36+36+5[/tex]
f o g(-2) = [tex]77[/tex]