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It's hard to represent this with only the characters on the keyboard, so I'll have to explain it as best I can.

Using bar notation to denote an infinitely repeating decimal, 0.4444444... can be represented as .4 with a bar over the 4. The best I can do here is to put a line through the four: .4 If you were writing it by hand, the line would be on top of the four, not through it.

Then 4/.4 = 9. The square root of 9 is 3, and 34 = 81. 81 - 4 = 77, so we have:

sqrt(4/.4)4 - 4 = 77

Substitute the square root symbol for "sqrt()"

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11y ago
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Q: How do you get 77 with four fours?
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