Flashcard 15 - Mathematics: Algebraic Reasoning Flashcard Set for the TSIA2

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The correct answer is:

Step 2


Explanation:

The first step in solving a radical equation is to square both sides in order to eliminate the square root sign. Step 1 is correctly done.

In step 2, the student does get rid of the square root sign but keeps the square. This is incorrect. The squaring would eliminate the square root sign leaving only \(x+5\), not \((x+5)^2\).

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