Tolong di jawab beserta caranya. Please tolong dijawab. Pengen di kumpulin sekarang.

jawab
a. (12x³ + 4x²) : (2x²)=
= 2x² (6x + 2) : (2x²)
= 6x + 2

b. (x² + 5x + 6);(x+2) =
= (x+2)(x+3) : (x+2)
= x+ 3

c. 2x² - x- 10  : (x+2)
= (x+2)(2x -5) :(x+2)
= 2x - 5

d. (2x³ + 7x² -14x -40) : (2x-5)
= (2x - 5)(3x² -10x + 15) : (2x-5)
= 3x² -10x + 15

e. (3x³ - 4x² - 5x +6) : (x+2) =
= {(x+2)(3x² -10x + 15)  - 24}/(x+2)
=  (3x² -10x + 15) - (24)/(x+2)