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RE: Daily quiz #001 - Time to crack our brain #steembounty
Hi @mathematrix my answer is 90.
4^2 + 4 = 20
5^2 + 5 = 30
6^2 + 6 = 42
7^2 + 7 = 56
9^2 + 9 = 81
Hi @mathematrix my answer is 90.
4^2 + 4 = 20
5^2 + 5 = 30
6^2 + 6 = 42
7^2 + 7 = 56
9^2 + 9 = 81