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Simplifying (n + -7)(4n2 + 5n + -4) = 0 Reorder the terms: (-7 + n)(4n2 + 5n + -4) = 0 Reorder the terms: (-7 + n)(-4 + 5n + 4n2) = 0 Multiply (-7 + n) * (-4 + 5n + 4n2) (-7(-4 + 5n + 4n2) + n(-4 + 5n + 4n2)) = 0 ((-4 * -7 + 5n * -7 + 4n2 * -7) + n(-4 + 5n + 4n2)) = 0 ((28 + -35n + -28n2) + n(-4 + 5n + 4n2)) = 0 (28 + -35n + -28n2 + (-4 * n + 5n * n + 4n2 * n)) = 0 (28 + -35n + -28n2 + (-4n + 5n2 + 4n3)) = 0 Reorder the terms: (28 + -35n + -4n + -28n2 + 5n2 + 4n3) = 0 Combine like terms: -35n + -4n = -39n (28 + -39n + -28n2 + 5n2 + 4n3) = 0 Combine like terms: -28n2 + 5n2 = -23n2 (28 + -39n + -23n2 + 4n3) = 0 Solving 28 + -39n + -23n2 + 4n3 = 0 Solving for variable 'n'. The solution to this equation could not be determined.
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