计算(3y+2)(y-4)-3(y-2)(y-3)
2个回答
(3y+2)(y-4)-3(y-2)(y-3)
=(3y²-12y+2y-8)-3(y²-5y+6)
=3y²-10y-8-3y²+15y-18
=5y-26
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