12 × 15 × (-5) = 3 × 7 × 11 = 45 × (-9) = 39 × 9 = 26 × 35 = tolong di jawab ya, kalau bisa pakai cara, terima kasih

1. -900
2. 231
3. -405
4. 351
5. 910
Bisa jadikan yg terbaik? Thx :3

Jawaban:
1.12 × 15 × (-5)=(12 × 15) × (-5)
=180 × (-5)
=-900.
2.3 × 7 × 11=(3 × 7) × 11
=21 × 11
=231.
3.45 × (-9)=-405.
4.39 × 9=351.
5.26 × 35=910.
Semoga membantu.