Basic Algebra/Solving Quadratic Equations/Solving Quadratic Equations By Taking The Square Root of Both Sides

VocabularyEdit


LessonEdit

One way to solve a quadratic is to use square root. Steps:

  1. Factor a quadratic so that it is in the form   (  can be determined by completing the square)
  2. Take the square root of both sides, so  
  3. If y is 0, the square root is zero. In this case, there will only be one solution instead of two.
  4. Solve for x

Example problemsEdit

Problem 1Edit

 

Problem 2Edit