2.4.2 Solving Quadratics by Completing the Square

Question 1

Completing the square

Answer 1

• a process used to solve quadratic equations
  1. Move constants across the equal sign away from the variable.
  2. Divide the coefficient of the unsquared term by two and square that answer.
  3. Add that answer to both sides of the equation to create a perfect square trinomial with the variable.
  4. Factor the perfect square trinomial.
  5. Take the square root of both sides.
  6. Add or subtract constants as necessary to solve for the variable.