Contact us
Choose a category below so we can get back to you as quickly as possible.
a加3的絕對值加b减2的平方=0 所以a+3=0,b-2=0 a=-3,b=2 所以原式=9+6=15
相等
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.