tolong dong kk jawab pliss:v

1. = -3x + 3y^2 -6 - 10x -15y^2 +10
= -13x - 12y^2 +4

2. = 2x + 8 + 4x -5 -5y
= 6x - 5y + 3

3. = 3p + q - 2p - 5q +z
= p - 4q + z

4. = 3x^2 +2x - 1 +x^2 - 5x +6
= 4x^2 -3x + 5

5. = 2x + 4y -2xy +10x -15y +25xy
= 12x - 11y +23xy

6. = 2x + 5 -x +3
= x +8

7. = x^2 +4x -1- 2x^2-4x
= -x^2 -1
= - (x^2 + 1)

8. = y^2 - 3- 4y^2 -5y - 6
= -3y^2 - 5y - 9
= - (3y^2 +5y +9)

9. = 5a - 6 + ab - a - 2ab + 1
= 4a - ab - 5

10. = -2p^3 + 4pq - q^2 + 3p^3 + 12pq - 3q^2
= p^3 + 16pq - 4q^2