作业帮(2y+3x)(-3x-2y)怎么解
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/01 20:01:43
(2y+3x)(-3x-2y)怎么解
(2y+3x)(-3x-2y)怎么解
(2y+3x)(-3x-2y)怎么解
(2y+3x)(-3x-2y) =-(2y+3x)(3x+2y) =-(3x+2y)��
(2y+3x)(-3x-2y) =-(2y+3x)(2y+3x) =-(2y+3x)^2 =-(4y^2+9x^2+12xy)
(2y+3x)(-3x-2y)=-9X??-12XY-4Y??
(2y+3x)(-3x-2y)=-(2y+3x)(3x+2y)=-(3x+2y)??=-9X??-12XY-4Y??
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