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Solving quadratics by taking square root
In this tutorial you will learn about the most basic way of solving quadratic equations.
Sal shows a few examples of quadratic equations whose form allows for solving by simply taking the square root of both sides (after quickly arranging the equation).
Sal solves the equation 2x^2+3=75 by isolating x^2 and taking the square root of both sides.
Solve quadratic equations of the form (x+a)^2-b=0.
Sal discusses the exact order of steps in the process of solving the equation 3(x+6)^2=75.
Sal analyzes a given solution of a quadratic equation, and finds where and what was the error in that process.
Analyze the process of solving a quadratic equation by taking the square root.