答:
x+y=-3,xy=-2
x³y²+x²y³
=x²y²(x+y)
=(-2)*(-2)*(-3)
=-12
猜你喜欢
- 1Many great people in the world history had deep affections for thier homes.(翻译成中文)
- 2描写贝多芬的痛苦和矛盾心理的句子800字;
- 3there are two English books in the library and each of them < >easy to understand .(be)
- 4已知关于x的方程x的平方-ax+a+3=0有两个相等的实数根求a的值
- 5we enjoyed ourselves very much (at) last night
- 6I’m afraid I can’t finish the work____________ to help me.A.unless you will comeB.unless you co
- 7英语翻译
- 8关于数学平方根的题!已知根号下x+y-3与根号下x-y-1互为相反数.求x-y是多少?
- 9修路队要修一段2500米长的路,先修3天,每天修300米.剩下的每天修400米,还要修多少天?(用方程解决问题)
- 10假如生活欺骗了你原文 假如生活欺骗了你,不要忧郁,也不要愤慨!不顺心时暂且克制自己,相信