Daily Archives: April 19, 2020

Singapore Math 8th Online Class, Lesson 24, 04/19/2020

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 … Continue reading

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AOPS Algebra 1 Online Course, Lesson24 , 04/19/2020

Today, students studied writing quadratic equations and solving quadratic inequality with one variable. Writing equations requires at least three conditions and selects proper quadratic form to find the values that need to complete the equation, such as standard form and … Continue reading

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