2ײ-9×+9tolong dong yg bs
Answer (1)
Jawaban:2x² - 9x + 9 = 0a = 2, b = -9, c = 9D = b² - 4acD = (-9)² - 4 × 2 × 9D = 81 - 72D = 9x = (-b ± √D) ÷ (2a)x = (9 ± √9) ÷ (2 × 2)x = (9 ± 3) ÷ 4x₁ = (9 + 3) ÷ 4 = 12 ÷ 4 = 3x₂ = (9 - 3) ÷ 4 = 6 ÷ 4 = 3/2
Jawaban:2x² - 9x + 9 = 0a = 2, b = -9, c = 9D = b² - 4acD = (-9)² - 4 × 2 × 9D = 81 - 72D = 9x = (-b ± √D) ÷ (2a)x = (9 ± √9) ÷ (2 × 2)x = (9 ± 3) ÷ 4x₁ = (9 + 3) ÷ 4 = 12 ÷ 4 = 3x₂ = (9 - 3) ÷ 4 = 6 ÷ 4 = 3/2
