hasil dari (3p+7)(5-2p) adalah...

=(3p+7)(5-2p)
=15p-6p+35-14p
=15p-6p-14p+35
=9p-14p+35
=-5p+35

=(3p+7)(5-2p)
=15p-6p^2+35-14p
=15p-14p+35-6p^2
=p+35-6p^2 (bisa difaktorkan)