To make 5 using only four 4's, you can either do: 4/4+square root of 4+square root of 4=5
OR:
(4x4+4)/4=5
Hope that helped!!
(4x4+4)/4
4 /5
(4 + 4)*4 + 4 + 4 = 42
4/4 + 4 × 4/4
4$4=*^5 then ..... from the 5 you do @ 4 ...... finally 4 * 2 making it 21
Well, isn't that a happy little challenge! To make 5 using four fours, you can try this: 4 + 4/4 = 5. Just like painting, sometimes it takes a few tries to get the perfect blend of numbers. Remember, there are no mistakes, just happy little accidents!
I am not aware of a solution using the four basic operations of arithmetic, but otherwise: 129 = [(4^4)/sqrt(4)] + sqrt(sqrt(sqrt(sqrt...(sqrt(4))...))) * * * * * * * * * * * * No matter how many times you square root it, it will not equal 1 To the OP. I have spend a lot of time on this one. Just wanting to make sure that the correct number is 129 and you are sure you are using only 4 fours. It would work out great if using 5 fours. If you made a mistake, correct it and I'll check back. In the mean time, I'll continue thinking about a solution for 4 fours and 129.
I can do it with 3: 4 * 4 + 4 = 1416(base 16) But that's probably not what you are looking for. The closest I can get is with 5 fours: 4 * 4 - (4 + 4) / 4
((4 times 4) plus 4) divided by 4.
4 - (4/4 x 4/4) or 4 + 4 - 4 - 4/4
((-4 x -4)-(-4))/-4 (16-(-4))/-4 (16+4)/-4 20/-4 = -5
[(4 times 4)+4] divided by 4