问题
解答题
计算:(-2x3y)•(3xy2-4xy+1).
答案
(-2x3y)•(3xy2-4xy+1)
=-2x3y•3xy2+(-2x3y)•4xy+(-2x3y)
=-6x4y3+8x4y2-2x3y.
计算:(-2x3y)•(3xy2-4xy+1).
(-2x3y)•(3xy2-4xy+1)
=-2x3y•3xy2+(-2x3y)•4xy+(-2x3y)
=-6x4y3+8x4y2-2x3y.