I need 23, 28, and 40 desperately
1 answer:
9514 1404 393
Answer:
- (5 +4 +3)×2 -1 = 23
- 5 +(4×3×2) -1 = 28
- 5×(4 +3 +2 -1) = 40
Step-by-step explanation:
The above expressions give the values you requested. I was able to form all integers 1-40 except 39.
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<em>Additional comment</em>
I used a computer program to evaluate different sequences of operations. Attached is one result for each integer 1-40 except 39. The notation here is postfix, but is not difficult to translate to infix with parentheses. Starting with the left-most operation (op), the pattern (a, b, op) → (a op b) is used. For example, the listing for 38 is 543+*21++, so this becomes 5*(4+3)+(2+1) = 38.
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Step-by-step explanation:
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