Unit
Quadratic Equations and Inequalities
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
To unlock all 5,300 videos, start your free trial.
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
Often, when students see a binomial squared, they can't help but expand it. If you are presented with a quadratic equation with a squared binomial, you could technically expand, combine like terms, write it in standard form, and re-factor to solve it BUT there is an easier way: we isolate the squared binomial, square root both sides, being sure the include a positive and negative square root, and then solve for x. This solving method is often used after completing the square or if you are given a parabolic function in vertex form and you want to find the x-intercepts.
Transcript Coming Soon!