Diketahui f(x)=x² g(x)=x+4 Tentukan a. (gof) (x) = b. (fog) (x) =

Question

Matematika Diposting : 2018-01-31 Diupdate : 2020-10-17 nuraprilia2216

Pertanyaan

Diketahui
f(x)=x²
g(x)=x+4
Tentukan
a. (gof) (x) =
b. (fog) (x) =

Answer 1

a. (gof)(x) = g(x²)
= x² + 4
b. (fog)(x) = f(x + 4)
= (x + 4)²
= x² + 8x + 16