作业帮(2x+y)²+(x+3y)(x-3y)-x(5x+8y)因式分解
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/27 21:49:57
(2x+y)²+(x+3y)(x-3y)-x(5x+8y)因式分解
(2x+y)²+(x+3y)(x-3y)-x(5x+8y)因式分解
(2x+y)²+(x+3y)(x-3y)-x(5x+8y)因式分解
(2x+y)²+(x+3y)(x-3y)-x(5x+8y)
=4x²+4xy+y²+x²-9y²-5x²-8xy
=-4xy-8y²
=-4（x+2y）²