Contact us
Choose a category below so we can get back to you as quickly as possible.
二次三項式 說明x的最高次幂為2 也就是說沒有x^3而應該有x^2 所以a=4 b=2 a-b=2 它的相反數為-2
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.