diketahui f(x) =4x+3,g(x)=2x2 tentukan daerah asal fog (x) dan gof (x)

(fog)(x) = f{g(x)}
= 4(2x²) + 3
= 8x² + 3

(gof)(x) = g{f(x)}
= 2(4x + 3)²
= 2(16x² + 24x + 9)
= 32x² + 48x + 18