(x-13)(x-1)(x+7)(4x+9)=0

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Solution for (x-13)(x-1)(x+7)(4x+9)=0 equation: 


Simplifying
(x + -13)(x + -1)(x + 7)(4x + 9) = 0

Reorder the terms:
(-13 + x)(x + -1)(x + 7)(4x + 9) = 0

Reorder the terms:
(-13 + x)(-1 + x)(x + 7)(4x + 9) = 0

Reorder the terms:
(-13 + x)(-1 + x)(7 + x)(4x + 9) = 0

Reorder the terms:
(-13 + x)(-1 + x)(7 + x)(9 + 4x) = 0

Multiply (-13 + x) * (-1 + x)
(-13(-1 + x) + x(-1 + x))(7 + x)(9 + 4x) = 0
((-1 * -13 + x * -13) + x(-1 + x))(7 + x)(9 + 4x) = 0
((13 + -13x) + x(-1 + x))(7 + x)(9 + 4x) = 0
(13 + -13x + (-1 * x + x * x))(7 + x)(9 + 4x) = 0
(13 + -13x + (-1x + x2))(7 + x)(9 + 4x) = 0

Combine like terms: -13x + -1x = -14x
(13 + -14x + x2)(7 + x)(9 + 4x) = 0

Multiply (13 + -14x + x2) * (7 + x)
(13(7 + x) + -14x * (7 + x) + x2(7 + x))(9 + 4x) = 0
((7 * 13 + x * 13) + -14x * (7 + x) + x2(7 + x))(9 + 4x) = 0
((91 + 13x) + -14x * (7 + x) + x2(7 + x))(9 + 4x) = 0
(91 + 13x + (7 * -14x + x * -14x) + x2(7 + x))(9 + 4x) = 0
(91 + 13x + (-98x + -14x2) + x2(7 + x))(9 + 4x) = 0
(91 + 13x + -98x + -14x2 + (7 * x2 + x * x2))(9 + 4x) = 0
(91 + 13x + -98x + -14x2 + (7x2 + x3))(9 + 4x) = 0

Combine like terms: 13x + -98x = -85x
(91 + -85x + -14x2 + 7x2 + x3)(9 + 4x) = 0

Combine like terms: -14x2 + 7x2 = -7x2
(91 + -85x + -7x2 + x3)(9 + 4x) = 0

Multiply (91 + -85x + -7x2 + x3) * (9 + 4x)
(91(9 + 4x) + -85x * (9 + 4x) + -7x2 * (9 + 4x) + x3(9 + 4x)) = 0
((9 * 91 + 4x * 91) + -85x * (9 + 4x) + -7x2 * (9 + 4x) + x3(9 + 4x)) = 0
((819 + 364x) + -85x * (9 + 4x) + -7x2 * (9 + 4x) + x3(9 + 4x)) = 0
(819 + 364x + (9 * -85x + 4x * -85x) + -7x2 * (9 + 4x) + x3(9 + 4x)) = 0
(819 + 364x + (-765x + -340x2) + -7x2 * (9 + 4x) + x3(9 + 4x)) = 0
(819 + 364x + -765x + -340x2 + (9 * -7x2 + 4x * -7x2) + x3(9 + 4x)) = 0
(819 + 364x + -765x + -340x2 + (-63x2 + -28x3) + x3(9 + 4x)) = 0
(819 + 364x + -765x + -340x2 + -63x2 + -28x3 + (9 * x3 + 4x * x3)) = 0
(819 + 364x + -765x + -340x2 + -63x2 + -28x3 + (9x3 + 4x4)) = 0

Combine like terms: 364x + -765x = -401x
(819 + -401x + -340x2 + -63x2 + -28x3 + 9x3 + 4x4) = 0

Combine like terms: -340x2 + -63x2 = -403x2
(819 + -401x + -403x2 + -28x3 + 9x3 + 4x4) = 0

Combine like terms: -28x3 + 9x3 = -19x3
(819 + -401x + -403x2 + -19x3 + 4x4) = 0

Solving
819 + -401x + -403x2 + -19x3 + 4x4 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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