> 数学 >
计算 (3A^N+2*B-2A^N*B^N-1+3B^N)*5A^N*B^N+3(N为正整数,n>1)
人气:148 ℃ 时间:2020-06-03 17:23:10
解答
=15a^(2n+2)b^(n+4)-10a^2nb^(2n+2)+15a^nb^(2n+3)
推荐
猜你喜欢
© 2026 79432.Com All Rights Reserved.
电脑版|手机版