Question

有几道因式分解的题目，请大神们帮下忙！谢谢！

kx^2+(2k-3)x+k-3
x^2+(n-2m)x+m^2-mn
kx^2+(3k+1)x+2k+1

Answer 1

kx^2+(2k-3)x+k-3
=(kx+k-3)(x+1)

x^2+(n-2m)x+m^2-mn
= x^2+(n-2m)x -m(n-m)
= (x-m)(x+n-m)

kx^2+(3k+1)x+2k+1
= (kx+2k+1)(k+1)

~ 满意请采纳，不清楚请追问。
--------------------
~ 梳理知识，帮助别人，愉悦自己。
~ “数理无限”团队欢迎你
~ http://zhidao.baidu.com/team/view/%CA%FD%C0%ED%CE%DE%CF%DE