Understanding the Square Root of 4 - Why Only One Answer Is Correct

Learn why the seemingly simple question "What is the square root of 4?" trips up many students in this 12-minute mathematics video. Discover the crucial distinction between the square root symbol (√) and solving quadratic equations, understanding why only one answer is mathematically correct despite common misconceptions. Explore the definition of principal square root and learn to differentiate between √4 and the solutions to x² = 4, a confusion that leads many to choose incorrect answers on tests. Master the proper interpretation of square root notation and develop a simple rule to remember for future problems. This lesson addresses a frequent source of errors in middle school math, pre-algebra, Algebra 1, and standardized tests including GED, HiSET, ASVAB, SAT, ACT, college placement exams, and teacher certification tests. Gain clear understanding of mathematical notation that will help you avoid this common logic trap and answer similar questions correctly on exams.