问题
填空题
(______)÷0.3x3y2=27x4y3+7x3y2-9x2y.
答案
(27x4y3+7x3y2-9x2y)•0.3x3y2=8.1x7y5+7x6y4-9x5y3.
故答案为8.1x7y5+7x6y4-9x5y3.
(______)÷0.3x3y2=27x4y3+7x3y2-9x2y.
(27x4y3+7x3y2-9x2y)•0.3x3y2=8.1x7y5+7x6y4-9x5y3.
故答案为8.1x7y5+7x6y4-9x5y3.