Simplify each expression (Homework)

1. -3(-6p² + 5p - 4) + 9(2p² - 3p - 8)

2. -5(8c² - 7c + 6) + 7(-9c² - 8c - 2)

3. 7(6n² - 5n - 2) + 6(-5n² - 8n - 4)

4. 4(-5a² + 3a - 4) + 4(8a² + 7a)

5. -8(-6c² - 6c - 2) + 5(-2c² - 6c - 4)

6. -9(f² - 2f + 4) + 7(-4f² - 6f - 4)

7. 9(7y² - y - 1) + 7(8y² + 9y + 2)

8. 7(4r² + 2) + 3(r² + 2r + 2)

9. -2(-8x² + 2x - 7) + 4(-5x² - 7x - 2)

10. -9(s² + 4s - 6) + 8(-3s² - 2s + 2)