Contact us
Choose a category below so we can get back to you as quickly as possible.
3/2 -3/10 因為20 1/4是81/4就是+ -9/2的平方 所以5X-3= +-9/2 5X=15/2 -3/2 X=3/2 -3/10
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.