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

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


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

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

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

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

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

Combine like terms: -1x + 1x = 0
315 = (-1 + 0 + x2)(3 + x)
315 = (-1 + x2)(3 + x)

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