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Analyze the process of solving a quadratic equation by taking the square root.

Simple quadratic equations like x^2=4 can be solved by taking the square root. This article reviews several examples and gives you a chance to practice on your own.

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Learn about complex roots from the quadratic formula on Khan Academy.

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Solve quadratic equations by inspection (e.g., for x^2 = 49), taking square roots, completing the square, the quadratic formula and factoring, as appropriate to the initial form of the equation.

Learn how to find the square root of a decimal number. The problem solved in this video is p^2 = 0.81.

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The student applies mathematical processes to understand that quadratic and square root functions, equations, and quadratic inequalities can be used to model situations, solve …