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

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


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

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

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

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

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

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

Combine like terms: -4x + 9x = 5x
(-9 + 5x + 4x2)(7 + x)(-13 + x) = 0

Multiply (-9 + 5x + 4x2) * (7 + x)
(-9(7 + x) + 5x * (7 + x) + 4x2 * (7 + x))(-13 + x) = 0
((7 * -9 + x * -9) + 5x * (7 + x) + 4x2 * (7 + x))(-13 + x) = 0
((-63 + -9x) + 5x * (7 + x) + 4x2 * (7 + x))(-13 + x) = 0
(-63 + -9x + (7 * 5x + x * 5x) + 4x2 * (7 + x))(-13 + x) = 0
(-63 + -9x + (35x + 5x2) + 4x2 * (7 + x))(-13 + x) = 0
(-63 + -9x + 35x + 5x2 + (7 * 4x2 + x * 4x2))(-13 + x) = 0
(-63 + -9x + 35x + 5x2 + (28x2 + 4x3))(-13 + x) = 0

Combine like terms: -9x + 35x = 26x
(-63 + 26x + 5x2 + 28x2 + 4x3)(-13 + x) = 0

Combine like terms: 5x2 + 28x2 = 33x2
(-63 + 26x + 33x2 + 4x3)(-13 + x) = 0

Multiply (-63 + 26x + 33x2 + 4x3) * (-13 + x)
(-63(-13 + x) + 26x * (-13 + x) + 33x2 * (-13 + x) + 4x3 * (-13 + x)) = 0
((-13 * -63 + x * -63) + 26x * (-13 + x) + 33x2 * (-13 + x) + 4x3 * (-13 + x)) = 0
((819 + -63x) + 26x * (-13 + x) + 33x2 * (-13 + x) + 4x3 * (-13 + x)) = 0
(819 + -63x + (-13 * 26x + x * 26x) + 33x2 * (-13 + x) + 4x3 * (-13 + x)) = 0
(819 + -63x + (-338x + 26x2) + 33x2 * (-13 + x) + 4x3 * (-13 + x)) = 0
(819 + -63x + -338x + 26x2 + (-13 * 33x2 + x * 33x2) + 4x3 * (-13 + x)) = 0
(819 + -63x + -338x + 26x2 + (-429x2 + 33x3) + 4x3 * (-13 + x)) = 0
(819 + -63x + -338x + 26x2 + -429x2 + 33x3 + (-13 * 4x3 + x * 4x3)) = 0
(819 + -63x + -338x + 26x2 + -429x2 + 33x3 + (-52x3 + 4x4)) = 0

Combine like terms: -63x + -338x = -401x
(819 + -401x + 26x2 + -429x2 + 33x3 + -52x3 + 4x4) = 0

Combine like terms: 26x2 + -429x2 = -403x2
(819 + -401x + -403x2 + 33x3 + -52x3 + 4x4) = 0

Combine like terms: 33x3 + -52x3 = -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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