Hadil pengurangan (a²-ab-b²) dari (b²+ab-3a²) By Admin ReiPosted on October 28, 2022 Hadil pengurangan (a²-ab-b²) dari (b²+ab-3a²) Jawab: (b²+ab-3a²) – (a²-ab-b²) = b²+ab-3a²-a²+ab+b² = 2b²+2ab-4a²