Jawapan

2016-04-02T14:02:57+08:00
=-3ab^2+3cde-3a^2-6ab^2-8cde =-3ab^2-6ab^2+3cde-8cde-3a^2 =-3a-9ab^2-5cde
Simbol ^ bermaksud kuasa. Kalau salah tolong betolkan
thkss
ok sure
2016-04-02T16:38:22+08:00

-3(-a²+ab²+ecd) -2 over 3(9ab²+12cde)

=3a²-3ab²-3cde -2 over 27ab² +36cde

=3a²-3ab²-3cde -2 over 9(ab²+4cde)