问题
填空题
化简分式(x-
|
答案
原式=(
-x2 x
)(y2 x
-y2 y
)x2 y
=(
)×(x2-y2 x
)y2-x2 y
=
.-x4-y4+2x2y2 xy
故答案为
.-x4-y4+2x2y2 xy
化简分式(x-
|
原式=(
-x2 x
)(y2 x
-y2 y
)x2 y
=(
)×(x2-y2 x
)y2-x2 y
=
.-x4-y4+2x2y2 xy
故答案为
.-x4-y4+2x2y2 xy