1. 4x² + 6x - x² - 2x= 2.9a + 4b - 5a + 3b= 3.4p - 5pq - pq - 7p + 6= 4.8x - 4y + 5a + 3b= 5.4y + 7z - 6y +9z= Tolong dijawab y..

1. 4x^ + 6x - x^ - 2x
= 4x^-x^ + 6x-2x
= 3x^ + 4x
2.= 9a-5a+4b+3b
= 4a + 7b
3.=4p-7p-5pq-pd+6
= -3p - 6pd + 6
4.= 5a + 3b + 8x -4y
5.= 4y-6y+7z+9z
= -2y + 16z