(d) x2 + 5x – 10
(e) -x2 – 4x – 11
Jawaban: A
Pembahasan: f(x) – g(x) = 3x – 5 – (6 – x – x2)
= 3x + x – 5 – 6 + x2
= 4x – 11 + x2
= x2 + 4x – 11
2) Jika f(x) = x2 + 2, maka f(x + 2) adalah…
(a) x2 + 2x + 6
(b) x2 + 4x – 6
(d) x2 + 5x – 10
(e) -x2 – 4x – 11
Jawaban: A
Pembahasan: f(x) – g(x) = 3x – 5 – (6 – x – x2)
= 3x + x – 5 – 6 + x2
= 4x – 11 + x2
= x2 + 4x – 11
2) Jika f(x) = x2 + 2, maka f(x + 2) adalah…
(a) x2 + 2x + 6
(b) x2 + 4x – 6
Editor: Rian Ade Maulana