(x+1)(x+3)(x+7)=0

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Solution for (x+1)(x+3)(x+7)=0 equation: 


Simplifying
(x + 1)(x + 3)(x + 7) = 0

Reorder the terms:
(1 + x)(x + 3)(x + 7) = 0

Reorder the terms:
(1 + x)(3 + x)(x + 7) = 0

Reorder the terms:
(1 + x)(3 + x)(7 + x) = 0

Multiply (1 + x) * (3 + x)
(1(3 + x) + x(3 + x))(7 + x) = 0
((3 * 1 + x * 1) + x(3 + x))(7 + x) = 0
((3 + 1x) + x(3 + x))(7 + x) = 0
(3 + 1x + (3 * x + x * x))(7 + x) = 0
(3 + 1x + (3x + x2))(7 + x) = 0

Combine like terms: 1x + 3x = 4x
(3 + 4x + x2)(7 + x) = 0

Multiply (3 + 4x + x2) * (7 + x)
(3(7 + x) + 4x * (7 + x) + x2(7 + x)) = 0
((7 * 3 + x * 3) + 4x * (7 + x) + x2(7 + x)) = 0
((21 + 3x) + 4x * (7 + x) + x2(7 + x)) = 0
(21 + 3x + (7 * 4x + x * 4x) + x2(7 + x)) = 0
(21 + 3x + (28x + 4x2) + x2(7 + x)) = 0
(21 + 3x + 28x + 4x2 + (7 * x2 + x * x2)) = 0
(21 + 3x + 28x + 4x2 + (7x2 + x3)) = 0

Combine like terms: 3x + 28x = 31x
(21 + 31x + 4x2 + 7x2 + x3) = 0

Combine like terms: 4x2 + 7x2 = 11x2
(21 + 31x + 11x2 + x3) = 0

Solving
21 + 31x + 11x2 + x3 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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