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Simplifying N(n + 1)(n + 2) = 720 Reorder the terms: N(1 + n)(n + 2) = 720 Reorder the terms: N(1 + n)(2 + n) = 720 Multiply (1 + n) * (2 + n) N(1(2 + n) + n(2 + n)) = 720 N((2 * 1 + n * 1) + n(2 + n)) = 720 N((2 + 1n) + n(2 + n)) = 720 N(2 + 1n + (2 * n + n * n)) = 720 N(2 + 1n + (2n + n2)) = 720 Combine like terms: 1n + 2n = 3n N(2 + 3n + n2) = 720 (2 * N + 3n * N + n2 * N) = 720 (2N + 3nN + n2N) = 720 Solving 2N + 3nN + n2N = 720 Solving for variable 'N'. Move all terms containing N to the left, all other terms to the right. Reorder the terms: -720 + 2N + 3nN + n2N = 720 + -720 Combine like terms: 720 + -720 = 0 -720 + 2N + 3nN + n2N = 0 The solution to this equation could not be determined.
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