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Solving an Equation with Radicals - Problem 7 323 views

In order to undo a square root, we do the opposite operation: square both sides. This is particularly useful when the equation that we wish to solve is of the form radical equals radical. Both square roots will be gone, so we'll just be working with the radicands. Once you have a solution or solutions for x, be sure to plug them back into the original equation to make sure that you're not taking the square root of a negative number.

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