6 kyu
Prove that a ^ 4 - b ^ 4 = (a - b) * (a + b) * (a ^ 2 + b ^ 2), using nats
23 of 60user8436785
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Fundamentals
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Stats:
| Created | May 1, 2020 |
| Published | May 5, 2020 |
| Warriors Trained | 250 |
| Total Skips | 19 |
| Total Code Submissions | 103 |
| Total Times Completed | 60 |
| Lean Completions | 23 |
| Coq Completions | 41 |
| Total Stars | 2 |
| % of votes with a positive feedback rating | 100% of 10 |
| Total "Very Satisfied" Votes | 10 |
| Total "Somewhat Satisfied" Votes | 0 |
| Total "Not Satisfied" Votes | 0 |
| Total Rank Assessments | 4 |
| Average Assessed Rank | 6 kyu |
| Highest Assessed Rank | 6 kyu |
| Lowest Assessed Rank | 7 kyu |
