1. 4m - 5 - 6m + 8
= 4m - 6m - 5 + 8
= -2m +3
2. 9p² - 4pq - q² -4p² + 5pq - 3q²
= 9p²- 4p² - q² - 3q² - 4pq + 5pq
= 5p² - 4q² + pq
3. (4kl + 3kl²)-(9kl + 4 kl²)
= 4kl + 3kl² - 9kl - 4kl²
= 3kl² - 4kl² + 3kl - 9kl
= -kl² - 6kl
mohon maaf kalo salah
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1. 4m - 5 - 6m + 8
= 4m - 6m - 5 + 8
= -2m +3
2. 9p² - 4pq - q² -4p² + 5pq - 3q²
= 9p²- 4p² - q² - 3q² - 4pq + 5pq
= 5p² - 4q² + pq
3. (4kl + 3kl²)-(9kl + 4 kl²)
= 4kl + 3kl² - 9kl - 4kl²
= 3kl² - 4kl² + 3kl - 9kl
= -kl² - 6kl
mohon maaf kalo salah