Jawabanmu

2014-09-09T21:24:35+07:00
(4p + 5t) (2p²-7pt+3t²) = ([4px2p²]+[4px-7pt²]+[4px3t²]) + ([5tx2p²]+[5tx-7pt²]+
[5tx3t²]) = (8p³-28p²t²+12pt²) + (10p²t-35pt²+15t³) = 8p³-28p²t²+10p²t+15t³-35pt²+12pt² = 8p³-28p²t²+10p²t+15t³-23pt²

mungkin itu jawabannya.. tapi aku juga gatau sih..

2014-09-09T21:52:46+07:00
= 8p³ - 28p²t + 12 t²p + 10p²t - 35t²p + 15t³
= 8p³ + 15t³ - 28p²t - 35p²t +12t²p -35t²p
= 8p³ + 15t³ - 63p²t - 23t²p

Maaf kalo salah^^