Multiple choice

√80 - √5

  1. 4√5

  2. 5√5

  3. 6√5

  4. 3√5
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

sqrt(80) = 4*sqrt(5). Subtracting sqrt(5) gives 4*sqrt(5) - sqrt(5) = 3*sqrt(5).

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