Contact us
Choose a category below so we can get back to you as quickly as possible.
|a+2|+(b-3)^2=0 所以a+2=0,b-3=0 故a=-2,b=3 所以2b/3a=2*3/(3*(-2))=-1 如果不懂,請Hi我,祝學習愉快!
代數式=-6a+4a-2a+5 =4a-8a+5
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.