【趕急！10點！】因式分解問題兩條

1. 3xy-2m-3mx+2y = 3xy-3mx-2m+2y
= 3x(y-m)+2(y-m)
= (y-m)(3x+2)

2. a^2b^2-4a^2b^3 = 1a^2b^2-4ba^2b^2
= a^2b^2(1-4b)

睇吓書的例題

要明咗佢

考試先至識