Today, students studied another two methods to solve quadratic equations, “completing the square” and “quadratic formula”. In fact, quadratic formula is derived in solving standard quadratic equation, ax^2+bx+c=0, by using “completing the square”. Both methods are so powerful that all quadratic equations can be solved through them. Completing the square is a method that is not only used in solving quadratic equation, but many places that need to form a perfect square.
Here is today’s homework:
1, 2(a)(b)(f)(g), 3, 5.(b)(d)(f)(h), 11.(a)(c)(e)(h), 12.(a)(c)(g),13.(a), 14.(a)(e)(g).