Po-Shen Loh’s Method: Solve Quadratics WITHOUT the Quadratic Formula
Most students learn to solve quadratic equations by factoring, completing the square, or using the quadratic formula. But what if there were another way to solve quadratics using something you already know—the axis of symmetry? In this video, you’ll learn Po-Shen Loh’s method for solving quadratic equations, an alternative approach that uses the relationship between […]
Squaring a Binomial: Why There’s a Middle Term
Why doesn’t (a+b)²+bx+c equal a²+b² ? In this video, I explain where the middle term comes from when squaring a binomial and why so many students make this common mistake. Instead of just memorizing a formula, you’ll see the logic behind the expansion and understand why the result includes the 2ab term. You’ll learn: • […]