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quadratic formula (the easiest way to prove it)

What's the best way to solve a quadratic equation? Some people might say to complete the square but some might say just use the quadratic formula. We will prove the quadratic formula by completing the square. The usual way to complete the square for ax^2+bx+c=0 is to first divide every term by a so can have 1 as the coefficient of x^2. However, we will actually multiply every term by 4a and the process of completing the square is actually going to be easier. Subscribe for future algebra tutorials 👉 ‪@bprpmathbasics‬ --------------------------------------------------------- If you find my channel helpful and would like to support, then you can support me Patreon: 👉   / blackpenredpen   buy a math shirt or a hoodie: 👉 https://bit.ly/bprp_merch "Just Algebra" (by blackpenredpen) is dedicated to helping middle school, high school, and community college students who need to learn algebra. Topics include how to solve various equations (linear equations, quadratic equations, square root equations, rational equations, exponential equations, logarithmic equations, and more), factoring techniques, application of algebra (aka word problems), functions, graphs, Pythagorean Theorem, and more. Free feel to leave your questions in the comment! Subscribe for future videos 👉 https://bit.ly/just_algebra --------------------------------------------------------- #justalgebra #quadraticequations