315=(x+3)(x+1)(x-1)

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Solution for 315=(x+3)(x+1)(x-1) equation: 


Simplifying
315 = (x + 3)(x + 1)(x + -1)

Reorder the terms:
315 = (3 + x)(x + 1)(x + -1)

Reorder the terms:
315 = (3 + x)(1 + x)(x + -1)

Reorder the terms:
315 = (3 + x)(1 + x)(-1 + x)

Multiply (3 + x) * (1 + x)
315 = (3(1 + x) + x(1 + x))(-1 + x)
315 = ((1 * 3 + x * 3) + x(1 + x))(-1 + x)
315 = ((3 + 3x) + x(1 + x))(-1 + x)
315 = (3 + 3x + (1 * x + x * x))(-1 + x)
315 = (3 + 3x + (1x + x2))(-1 + x)

Combine like terms: 3x + 1x = 4x
315 = (3 + 4x + x2)(-1 + x)

Multiply (3 + 4x + x2) * (-1 + x)
315 = (3(-1 + x) + 4x * (-1 + x) + x2(-1 + x))
315 = ((-1 * 3 + x * 3) + 4x * (-1 + x) + x2(-1 + x))
315 = ((-3 + 3x) + 4x * (-1 + x) + x2(-1 + x))
315 = (-3 + 3x + (-1 * 4x + x * 4x) + x2(-1 + x))
315 = (-3 + 3x + (-4x + 4x2) + x2(-1 + x))
315 = (-3 + 3x + -4x + 4x2 + (-1 * x2 + x * x2))
315 = (-3 + 3x + -4x + 4x2 + (-1x2 + x3))

Combine like terms: 3x + -4x = -1x
315 = (-3 + -1x + 4x2 + -1x2 + x3)

Combine like terms: 4x2 + -1x2 = 3x2
315 = (-3 + -1x + 3x2 + x3)

Solving
315 = -3 + -1x + 3x2 + x3

Solving for variable 'x'.

Combine like terms: 315 + 3 = 318
318 + x + -3x2 + -1x3 = -3 + -1x + 3x2 + x3 + 3 + x + -3x2 + -1x3

Reorder the terms:
318 + x + -3x2 + -1x3 = -3 + 3 + -1x + x + 3x2 + -3x2 + x3 + -1x3

Combine like terms: -3 + 3 = 0
318 + x + -3x2 + -1x3 = 0 + -1x + x + 3x2 + -3x2 + x3 + -1x3
318 + x + -3x2 + -1x3 = -1x + x + 3x2 + -3x2 + x3 + -1x3

Combine like terms: -1x + x = 0
318 + x + -3x2 + -1x3 = 0 + 3x2 + -3x2 + x3 + -1x3
318 + x + -3x2 + -1x3 = 3x2 + -3x2 + x3 + -1x3

Combine like terms: 3x2 + -3x2 = 0
318 + x + -3x2 + -1x3 = 0 + x3 + -1x3
318 + x + -3x2 + -1x3 = x3 + -1x3

Combine like terms: x3 + -1x3 = 0
318 + x + -3x2 + -1x3 = 0

The solution to this equation could not be determined.

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