(2x-3y)(3x-4y)的解
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(2x-3y)(3x-4y)的解(2x-3y)(3x-4y)的解(2x-3y)(3x-4y)的解(2x-3y)(3x-4y)=6x²-8xy-9xy+12y²=6x²-1
(2x-3y)(3x-4y)的解
(2x-3y)(3x-4y)的解
(2x-3y)(3x-4y)的解
(2x-3y)(3x-4y)
=6x²-8xy-9xy+12y²
=6x² -17xy +12y²
6x-xy-12y
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