How do you make 13 using four 4's?

Answer 1

4x(4+sqrt(4))/sqrt(4)

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2nd Answer:

The above would not equal 13. It would equal 12.

4*(4 + 41/2) / 41/2 = 4 * (4 + 2) / 2 = 4 * 6 / 2 = 12.

However, if using powers is acceptable (such as square roots above) then a possible answer would be:

4 + 4 + 4 + 40 = 13

Answer 2

44/4 + √4 = 11 + 2 = 13