(n-1)(n+5)(n-4)=

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Solution for (n-1)(n+5)(n-4)= equation:


Simplifying
(n + -1)(n + 5)(n + -4) = 0

Reorder the terms:
(-1 + n)(n + 5)(n + -4) = 0

Reorder the terms:
(-1 + n)(5 + n)(n + -4) = 0

Reorder the terms:
(-1 + n)(5 + n)(-4 + n) = 0

Multiply (-1 + n) * (5 + n)
(-1(5 + n) + n(5 + n))(-4 + n) = 0
((5 * -1 + n * -1) + n(5 + n))(-4 + n) = 0
((-5 + -1n) + n(5 + n))(-4 + n) = 0
(-5 + -1n + (5 * n + n * n))(-4 + n) = 0
(-5 + -1n + (5n + n2))(-4 + n) = 0

Combine like terms: -1n + 5n = 4n
(-5 + 4n + n2)(-4 + n) = 0

Multiply (-5 + 4n + n2) * (-4 + n)
(-5(-4 + n) + 4n * (-4 + n) + n2(-4 + n)) = 0
((-4 * -5 + n * -5) + 4n * (-4 + n) + n2(-4 + n)) = 0
((20 + -5n) + 4n * (-4 + n) + n2(-4 + n)) = 0
(20 + -5n + (-4 * 4n + n * 4n) + n2(-4 + n)) = 0
(20 + -5n + (-16n + 4n2) + n2(-4 + n)) = 0
(20 + -5n + -16n + 4n2 + (-4 * n2 + n * n2)) = 0
(20 + -5n + -16n + 4n2 + (-4n2 + n3)) = 0

Combine like terms: -5n + -16n = -21n
(20 + -21n + 4n2 + -4n2 + n3) = 0

Combine like terms: 4n2 + -4n2 = 0
(20 + -21n + 0 + n3) = 0
(20 + -21n + n3) = 0

Solving
20 + -21n + n3 = 0

Solving for variable 'n'.

The solution to this equation could not be determined.

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