(x+3²)-(x-1)(x-2)用因式分解,

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/19 08:46:54
(x+3²)-(x-1)(x-2)用因式分解,(x+3²)-(x-1)(x-2)用因式分解,(x+3²)-(x-1)(x-2)用因式分解,原式=(x+9)-(x²

(x+3²)-(x-1)(x-2)用因式分解,
(x+3²)-(x-1)(x-2)用因式分解,

(x+3²)-(x-1)(x-2)用因式分解,
原式=(x+9)-(x²-3x+2)
=x+9-x²+3x-2
=-x²+4x+7
=-(x-2)²+11