Dr.Fraser will move into Solving Equations by Completing the Square by first examining what are perfect square trinomials and how to complete the square. Also, he explains how to deal with an equation when the leading coefficient is not 1. At the end of the lesson are four additional comprehensive examples.
You can solve
quadratic equations by taking the square root of both sides of the
equation. To do this, the quadratic expression must be a perfect
square to convert a quadratic expression into a perfect square.
Take one half of the coefficient of the linear term, square it, and
add this value to both sides of the equation.
If the coefficient
of the quadratic term is not 1, you must first factor this
coefficient out of the quadratic and linear term and then complete
the square for the new quadratic expression which now has a
coefficient of 1.
Solving Equations by Completing the Square
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.