Contact us
Choose a category below so we can get back to you as quickly as possible.
1/2a^2+ab+1/2b^2 =1/2(a^2+2ab+b^2) =1/2(a+b)^2 =1/2*6^2=18
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.