(3x²-3y²)/(x+y) 怎么算?
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/30 23:49:33
x){øBMZxS(^] d) rlڀ9@c"t#@FjDhGGFj("شgtX2XDQ]Fu ~F
(3x²-3y²)/(x+y) 怎么算?
(3x²-3y²)/(x+y) 怎么算?
(3x²-3y²)/(x+y) 怎么算?
=3(x+y)(x-y)/(x+y)=3(x-y)
3(X2-Y2)/(X+Y)=3(X-Y)(X+Y)/(X+Y)=3(X-Y)
(3x^2-3y^2)/(x+y)
=3(x^2-y^2)/(x+y)
=3(x+y)(x-y)/(x+y)
=3(x-y)