(x-y)^2+4xy-y^2因式分解

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 14:39:24
(x-y)^2+4xy-y^2因式分解
x)ӨЭԌ36ԭ3z:{=O;^,_lTW^ΆdbjʆֺFڕ6V@P{:**/.H̳o4eHMli=s tLw`bXd@.XPATCŞ

(x-y)^2+4xy-y^2因式分解
(x-y)^2+4xy-y^2因式分解

(x-y)^2+4xy-y^2因式分解
(x-y)^2+4xy-y^2
=x²-2xy+y²+4xy-y^2
=x²+2xy
=x(x+2y)

x²-2xy+y²+4xy-y²
=x²+2xy
=x(x+2y)

(x-y)²+4xy-y²=﹙x+y﹚²-y²=﹙x+y-y﹚﹙x+y+y﹚=x﹙x+2y﹚.