1.—4x^2y(a-b)^2+6xy^2(b-a)2.a^4-1/2a^2b^2c^2+1/16b^4c^43.(y-x)^6-(y+x)^64.—2x^5n-1y^n+4x^3n-1y^n+2-2x^n-1y^n+45.x^2+4y^2+9z^2-4xy-12yz+6xz6.3x^2y^2-17mnxy+10m^2n^27.(a^2-3a+2)x^2+(2a^2-4a+1)xy+(a^2-a)y^2^2就是2次方，^3就是三次方4

Question

1.—4x^2y(a-b)^2+6xy^2(b-a)
2.a^4-1/2 a^2b^2c^2+1/16b^4c^4
3.(y-x)^6-(y+x)^6
4.—2x^5n-1 y^n +4x^3n-1 y^n+2 -2x^n-1 y^n+4
5.x^2+4y^2+9z^2-4xy-12yz+6xz
6.3x^2y^2-17mnxy+10m^2n^2
7.(a^2-3a+2)x^2+(2a^2-4a+1)xy+(a^2-a)y^2
^2就是2次方，^3就是三次方 4x^3n-1 就是4X的3N-1次方

Answer 1

不知道你的^是不是乘号,下面我就当着乘号回答一题,是或者不是你补充说明下哦.
1.-4x*2y(a-b)*2+6xy*2(b-a)
=4xy(b-a)(4+3)
=28xy(b-a)
^这个到底代表的什么呢?是次方吗吗?清楚了我再答吧