(3 - а) × (3 + a) - 9 + a² = (9-а²) -9+а² = 9-а²-9+а² = 0
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
(3 - а) × (3 + a) - 9 + a² = (9-а²) -9+а² = 9-а²-9+а² = 0