Multiply and combine like terms - factor the trinomial and

Question

1. Subtract the following polynomials: (4x² - 9x - 7) - (3x² - 5x - 6)

2. Multiply and combine like terms: (x - 10)(x + 9)

3. Factor completely: 10r³s² + 25r²s² - 15r²s³

4. Factor the trinomial: 3x² + 7x + 2

5. Solve the equation by factoring: x² - 2x - 3 = 0

6. Multiply: -5x(3x - 5)

7. Multiply: (3x - 5y)2

8. Factor: x² - 7x + 12

9. Factor: 8x³y4 - 12x²y

10. Solve the equation by factoring: x² - 7x + 12 = 0