Nilai x yang memenuhi x² – 4x – 12 ≤ 0 adalah–2 ≤ x ≤ 6Pembahasan:x² – 4x – 12 ≤ 0(x – 6)(x + 2) ≤ 0x = 6 ∪ x = –2–2 ≤ x ≤ 6 Share :