Contact us
Choose a category below so we can get back to you as quickly as possible.
x+2分之一+x分之一=x的平方+2x分之32 1/(x+2)+1/x=32/(x²;+2x); (x+x+2)/x(x+2)=32/x(x+2); 2x+2=32; 2x=30; x=15; 帶入檢驗不是增根; 所以x=15; 手機提問的朋友在用戶端右上角評估點【滿意】即可.
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.