Tolong jawab cepat yaa

A) ( 8x² + 4x – 16 ) : 4 = 2x² + x – 4

b) (x³ + 2x² – 5x – 6 ) : (x – 2) = x² + 2x – 5 – 6 – 2x³ – x² + 2,5x + 3
= x² – x² + 2x + 2,5x – 5 – 6 + 3 – 2x³
= 4,5x + 2 – 2x³

c) (x³ + 2x² – 5x) : (x² – x – 2) = x + 2 – 5 -x² + 2x + 5 – x³ – x² + 2,5x
= x + 2 – 5 + 5 – x² – x² + 2x + 2,5x – x³
= x + 2 + 4,5x – x³

d) (3x³ – 5x² – 12x + 20) : (x² – 4) = 3x – 5 – 12 + 20 – x³ + x² – 3x – 5
= 3x – 3x – 5 – 12 + 20 – 5 – x³ + x²
= (-2) – x³ + x²

maaf jika salah