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1. (8pq + 6q) + 12 - 10q - 3pq
= 8pq - 3pq + 6q - 10q + 12
= 5pq - 4q + 12 (b)
2. (9p - 6q) - (5p - 3p)
= 9p - 5p - 6q - 3q
= 4p - 3q (a)
3. 2(4x - 5) - 5x + 7
= 8x - 10 - 5x + 7
= 8x - 5x + 7 - 10
= 3x - 3 (b)
4. (4 - 5m)(2m + 3)
= 8m + 12 - 10m² - 15m
= -10m² + 8m - 15m + 12
= -10m² - 7m + 12 (a)
5. (3x² + 8x - 35) ÷ (3x - 7)
x + 5
__________
3x - 7 / 3x² + 8x - 35
3x² - 7x
___________–
15x - 35
15x - 35
____________–
0
hasilnya : x + 5 (a)