tolong jawab ya no 1-10

1. 16x + 3 + 3x + 4 = 19x + 7
2. -9p (5p-2q) = - 45p^2 + 18pq
3. -5(9-y) = - 45 + 5y
4. (2x + 4)(3x + 1) = 6x^2 + 2x + 12x + 5
= 6x^2 + 14x + 5
5.(x - 4)(x + 1) = x^2 + x - 4x - 4
= x^2 - 3x - 4
6. (-3x +2)(x - 5) = -6x^2 + 15x + 2x - 10
= -6x^2 + 17x -10
7. 16a^2b / 2ab = 8a
8. (8x^2 + 2x) / (2y^2 -2y) = 4x^2 - x / y^2 - y
9. 2p - 3p^2 + 2p - 5q^2 + 3p
= -3p^2 + 7p - 5q^2
10. 6m + 3(m^2 - n^2) - 2m^2 + 3n^2
= 6m + 3m^2 - 3n^2 - 2m^2 + 3n^2
= m^2 + 6m