tolong 3 soal ini ya... sekaligus

Nmr 1
(2x³-3)(3x²+5)+4p = 6x^5+10x³-9x²-3
6x^5+10x³-9x²-15+4p = 6x^5+10x³-9x²-3
maka,
-15+4p = -3
4p = 12
p = 3

Nmr 2
Lihat gambar!
Hasil → H(x) = 5x²-3x-2
Sisa → S(x) = 8x+11

Maaf jika salah..