Contact us
Choose a category below so we can get back to you as quickly as possible.
∵關於x的二次三項式,二次項係數是-1,∴二次項是-x2,又∵一次項係數是2,∴一次項是2x,又∵常數項是-3,∴這個二次三項式為:-x2+2x-3.故答案為:-x2+2x-3.
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.