Multiple choice

√50 - √8

  1. 3√2

  2. 5√4

  3. 7√2

  4. 2√2
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A Correct answer
Explanation

Simplify the radicals first: sqrt(50) = sqrt(25 * 2) = 5 * sqrt(2) and sqrt(8) = sqrt(4 * 2) = 2 * sqrt(2). Then, 5 * sqrt(2) - 2 * sqrt(2) = 3 * sqrt(2).

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