1.(16x^2y^3z+8x^3y^2z)÷8x^2y^2继续：2.(2x+y)(x-y)-(x+2y)^23.(-x)^3·x·(-x)^4÷x^54.(x^3)^4+x^10·x^2+x·x^3·x^8

Question

1.(16x^2y^3z+8x^3y^2z)÷8x^2y^2
继续：2.(2x+y)(x-y)-(x+2y)^2
3.(-x)^3·x·(-x)^4÷x^5
4.(x^3)^4+x^10·x^2+x·x^3·x^8

Answer 1

1.（16x^2y^3z+8x^3y^2z)÷8x^2y^2原式=8x^2y^2z(2y+x)÷8x^2y^2=z(2y+x)2.(2x+y)(x-y)-(x+2y)^2 这个好象没什么简便方法,只能直接化开算原式=2x^2-2xy+xy-y^2-x^2-4xy-4y^2=x^2-5xy-5y^23.(-x)^3·x·(-x)^4÷x^5原...