Barry Leung 👑FollowJun 27·3 min read·Member-onlyMathematics2 Algebra ProblemsCan You Solve Them?Photo by Greg Jeanneau 🗾 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