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Aurora Harrell
Mathematics
26 May, 14:44
4+8+12 + ... + 4n=2n (n+1)
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Pippy
26 May, 14:58
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4 + 8 + 12 + 4n = 2n (n + 1)
24 + 4n = 2n (n) + 2n (1)
24 + 4n = 2n² + 2n
-2n - 2n
24 = 2n²
24 = 2n²
2 2
12 = n²
√12 = n
√4 * 3 = n
√4 √3 = n
2 √3 = n
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