Natalia andrea Parra cortes

1. (8x – 4y + 2) + (3x + 2y – 5). 3. (812 – 6s²) + (4s² 5. (VI + V2y) + (Vi+ V3z) 7. (6x2 – 10xy + V2) – (2z – xy + 4). 9. (Vĩ + V2y) – (Vĩ+ V37). 2. (6x2 – 10xy + 2) + (2z – xy + 4). 6. (2x + 3y – 5) – (7x – 6y + 2). 10. 4(2z – w) – 3(w – 2z). 11....