∫√5−2x+x2dx
Let I=∫√5−2x+x2dx=∫√x2−2x+1+4dx=∫√(x−1)2+(2)2dx=∫√(2)2+(x−1)2dx=x−12√22+(x−1)2+2 log|(x−1)+√22+(x−1)2|+C=x−12√5−2x+x2+2 log|(x−1)+√5−2x+x2|+C