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Solve using the square root method. Round the solution to the nearest tenth. x2 - 20 = 0 A. {-10.0, 10.0} B. {-5.5, 5.5} C. {-3.5, 3.5} D. {-4.5, 4.5}
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well rewrite so x&^2 = 20 take square root of both sides. the solution is + or - the answer
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