no key cancellation是什么意思

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/19 17:46:41

no key cancellation是什么意思
polynormial are are expanded unless no key cancellation can occur
这里的expand 应该是展开,那么key cancellation呢?
我觉得意思是（结合上下文）多项式被展开,直到没有什么关键的?
这是数学上关于多项式化简后计算机怎么处理,是否化简的问题
hpmv 这里的“key”是什么意思
你的意思 key cancellation应该是公因式吧

i think it probably means that if you have a polynomial,you normally expand it,unless you can make significantly simple cancellations.for example:
the polynomial (x-3)^6 / (x-3)^4 would undergo a "key cancellation" towards (x-3)^2,before it would be expanded.
In contrast,the polynomial (x^2-3)^2 cannot really be simplified before expanding,so this polynomial would be simply expanded.

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