Answer and explanation

Correct answer: D. 5 root 2

  1. Step 1: 50 = 25 x 2. Step 2. root 50 = root 25 x root 2 = 5 root 2. Answer: 5 root 2. Why not the others: 2 root 5: The numbers are swapped: the square factor of 50 is 25, not 4. 25 root 2: The square root of 25 is 5, not 25. 10 root 5: That does not square back to 50.

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