因式分解
x^2-49
36X^2-25Y^2X^2
5X^2-60X+180
9(X-2)^2-6(x-2)+1
(x^2+2xy+y^2)-(6x+6y)+9
最好全部答晒
^之後果個係次方
收錄日期: 2021-04-30 20:42:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071016000051KK02556