问几道初二的因式分解(要有过程)
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问几道初二的因式分解(要有过程)
1.18X的N+1次方-24X的N次方
2.已知A+B=3,A²B+AB²=1,则AB=
3.X(X-Y)(A-B)-Y(Y-X)(B-A)
4.6X(X-Y)²+3(Y-X)³
5.4(M+N)²-9(M-N)²
1.18X的N+1次方-24X的N次方
2.已知A+B=3,A²B+AB²=1,则AB=
3.X(X-Y)(A-B)-Y(Y-X)(B-A)
4.6X(X-Y)²+3(Y-X)³
5.4(M+N)²-9(M-N)²
![问几道初二的因式分解(要有过程)](/uploads/image/z/17385338-2-8.jpg?t=%E9%97%AE%E5%87%A0%E9%81%93%E5%88%9D%E4%BA%8C%E7%9A%84%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%EF%BC%88%E8%A6%81%E6%9C%89%E8%BF%87%E7%A8%8B%EF%BC%89)
1.6x^n(3x-4)
2.A²B+AB²=AB(A+B)=1 AB=1/3
3.原式=x(x-y(A-B)-y(x-y)(A-B)=(x-y)²(A-B)
4.原式=6x(x-y)²-3(x-y)^3=(x-y)^2(6x-3(x-y))=3(x-y)^2(x+y)
5.(2(M+N)+3(M-N))(2(M+N)-3(M-N))=(5M-N)(5N-M)
2.A²B+AB²=AB(A+B)=1 AB=1/3
3.原式=x(x-y(A-B)-y(x-y)(A-B)=(x-y)²(A-B)
4.原式=6x(x-y)²-3(x-y)^3=(x-y)^2(6x-3(x-y))=3(x-y)^2(x+y)
5.(2(M+N)+3(M-N))(2(M+N)-3(M-N))=(5M-N)(5N-M)