因式分解:(1-x²)(1-y²)+4xy
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/09 17:49:37
x){:{=O;^,_~Ϭ{:u+Ԕ
-s+\mJ"}2tِk-\LVʇq***du5`ArPAMz
CJM:]IV$
fVhWj$ف< Qw
因式分解:(1-x²)(1-y²)+4xy
因式分解:(1-x²)(1-y²)+4xy
因式分解:(1-x²)(1-y²)+4xy
=1-x²-y²+x²y²+4xy
=1+2xy+x²y²-(x²-2xy+y²)
=(1+xy)²-(x-y)²
=(1+xy+x-y)(1+xy-x+y)