x(m-x)(m-y)-m(x-m)(y-m)
=x(m-x)(m-y)-m(m-x)(m-y)
=(m-x)(m-y)(x-m)
=-(m-x)^2(m-y)
猜你喜欢
- 1A:1._____2._____,do you know this girl?B：Yes.
- 2世界上最长的河是什么河?有多长?
- 3英语翻译
- 4b^3n-1 c^2/a^2n+1×a^2n-1/b^3n-2=
- 5填空：1.Can the birds fly?---Yes ___ can.A.it B.them C.they 2.Can your help me ___the horses?
- 6一见难忘的事作文!刘嘉伟要!急要!速回!
- 7若一灯泡电阻为10欧,电压为4.5伏,为了准确测量,电压表的量程和电流表的量程分别选哪个
- 8我们喜爱在春天放风筝用英语表达
- 9He played for the school soccer team.(同义句） He is a * * shool soccer team.
- 10英语翻译