Multiple choice

√81 + √64 =

  1. 12.041595787923

  2. √145

  3. 9+8

  4. 8+7
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

√81 + √64 = 9 + 8 = 17. We cannot combine the radicals as √(81+64). Option C correctly shows this as the sum 9+8.

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