I'll just ask one question at a time as I don't want to spam up the forum! 1. The problem statement, all variables and given/known data Find the area of the region enclosed by the curves y²=4+x and x+2y=4. 2. 3. The attempt at a solution Well I know I have to transpose the two equations to make y the subject, but for the first equation I'm unsure what to do with the square root. Do I take it as a circle (i.e. ±root[4+x]) ?