Barry Leung ๐FollowJun 27ยท3 min readยทMember-onlyMathematics2 Algebra ProblemsCan You Solve Them?Photo by Greg Jeanneau ๐พ on UnsplashProblem 1Let x be a real number. What is the minimum value of the following expression?We will first expand the expression intoUsing the method of completing the square, we get