(x+1)(x+7)(x-15)=0

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Solution for (x+1)(x+7)(x-15)=0 equation:


Simplifying
(x + 1)(x + 7)(x + -15) = 0

Reorder the terms:
(1 + x)(x + 7)(x + -15) = 0

Reorder the terms:
(1 + x)(7 + x)(x + -15) = 0

Reorder the terms:
(1 + x)(7 + x)(-15 + x) = 0

Multiply (1 + x) * (7 + x)
(1(7 + x) + x(7 + x))(-15 + x) = 0
((7 * 1 + x * 1) + x(7 + x))(-15 + x) = 0
((7 + 1x) + x(7 + x))(-15 + x) = 0
(7 + 1x + (7 * x + x * x))(-15 + x) = 0
(7 + 1x + (7x + x2))(-15 + x) = 0

Combine like terms: 1x + 7x = 8x
(7 + 8x + x2)(-15 + x) = 0

Multiply (7 + 8x + x2) * (-15 + x)
(7(-15 + x) + 8x * (-15 + x) + x2(-15 + x)) = 0
((-15 * 7 + x * 7) + 8x * (-15 + x) + x2(-15 + x)) = 0
((-105 + 7x) + 8x * (-15 + x) + x2(-15 + x)) = 0
(-105 + 7x + (-15 * 8x + x * 8x) + x2(-15 + x)) = 0
(-105 + 7x + (-120x + 8x2) + x2(-15 + x)) = 0
(-105 + 7x + -120x + 8x2 + (-15 * x2 + x * x2)) = 0
(-105 + 7x + -120x + 8x2 + (-15x2 + x3)) = 0

Combine like terms: 7x + -120x = -113x
(-105 + -113x + 8x2 + -15x2 + x3) = 0

Combine like terms: 8x2 + -15x2 = -7x2
(-105 + -113x + -7x2 + x3) = 0

Solving
-105 + -113x + -7x2 + x3 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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