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Given the equation square root of 2x-1=7 solve for x and identify if it is an extraneous solution. I came up with the answer 25 but is it an extraneous solution?

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  1. 3 June, 14:30
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    Step-by-step explanation:

    To check if a solution is extraneous, simply plug it back into the original equation. If it works, then solution isn't extraneous.

    √ (2x-1) = 7

    √ (2 (25) - 1) = 7

    √ (50-1) = 7

    √ (49) = 7

    7 = 7

    So the solution isn't extraneous.
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