diketahui fungsi f:x→ 3x + 6 dan fungsi g:x→x + 2. tentukan: 1.(f+g) (x), 2.(f-g) (x), 3.(f×g) (x), dan 4.(f/g) (x)!

Mapel: Matematika
Bab: Operasi Fungsi

1. (f+g) (x) = f(x) + g(x)
=3x+6 + x+2
=4x + 8

2. (f-g) (x) = f(x) - g(x)
=3x+6 - (x+2)
=3x+6 -x-2
=2x +4

3. (f×g) (x) = f(x) × g(x)
= (3x+6) (x+2)
= 3x^2 +6x +6x +12
= 3x^2 +12x + 12

4. (f/g) (x) = f(x) / g(x)
= 3x+6 / x+2
= 3 (x+2) / x+2
= 3