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Simplifying (N + 4) + n(n + 2) * n = 0 Reorder the terms: (4 + N) + n(n + 2) * n = 0 Remove parenthesis around (4 + N) 4 + N + n(n + 2) * n = 0 Reorder the terms: 4 + N + n(2 + n) * n = 0 Reorder the terms for easier multiplication: 4 + N + n * n(2 + n) = 0 Multiply n * n 4 + N + n2(2 + n) = 0 4 + N + (2 * n2 + n * n2) = 0 4 + N + (2n2 + n3) = 0 Solving 4 + N + 2n2 + n3 = 0 Solving for variable 'N'. Move all terms containing N to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + N + 2n2 + -4 + n3 = 0 + -4 Reorder the terms: 4 + -4 + N + 2n2 + n3 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + N + 2n2 + n3 = 0 + -4 N + 2n2 + n3 = 0 + -4 Combine like terms: 0 + -4 = -4 N + 2n2 + n3 = -4 Add '-2n2' to each side of the equation. N + 2n2 + -2n2 + n3 = -4 + -2n2 Combine like terms: 2n2 + -2n2 = 0 N + 0 + n3 = -4 + -2n2 N + n3 = -4 + -2n2 Add '-1n3' to each side of the equation. N + n3 + -1n3 = -4 + -2n2 + -1n3 Combine like terms: n3 + -1n3 = 0 N + 0 = -4 + -2n2 + -1n3 N = -4 + -2n2 + -1n3 Simplifying N = -4 + -2n2 + -1n3
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