(2x-7)(2x+5)(x^2-9)=91

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Solution for (2x-7)(2x+5)(x^2-9)=91 equation: 


Simplifying
(2x + -7)(2x + 5)(x2 + -9) = 91

Reorder the terms:
(-7 + 2x)(2x + 5)(x2 + -9) = 91

Reorder the terms:
(-7 + 2x)(5 + 2x)(x2 + -9) = 91

Reorder the terms:
(-7 + 2x)(5 + 2x)(-9 + x2) = 91

Multiply (-7 + 2x) * (5 + 2x)
(-7(5 + 2x) + 2x * (5 + 2x))(-9 + x2) = 91
((5 * -7 + 2x * -7) + 2x * (5 + 2x))(-9 + x2) = 91
((-35 + -14x) + 2x * (5 + 2x))(-9 + x2) = 91
(-35 + -14x + (5 * 2x + 2x * 2x))(-9 + x2) = 91
(-35 + -14x + (10x + 4x2))(-9 + x2) = 91

Combine like terms: -14x + 10x = -4x
(-35 + -4x + 4x2)(-9 + x2) = 91

Multiply (-35 + -4x + 4x2) * (-9 + x2)
(-35(-9 + x2) + -4x * (-9 + x2) + 4x2 * (-9 + x2)) = 91
((-9 * -35 + x2 * -35) + -4x * (-9 + x2) + 4x2 * (-9 + x2)) = 91
((315 + -35x2) + -4x * (-9 + x2) + 4x2 * (-9 + x2)) = 91
(315 + -35x2 + (-9 * -4x + x2 * -4x) + 4x2 * (-9 + x2)) = 91
(315 + -35x2 + (36x + -4x3) + 4x2 * (-9 + x2)) = 91
(315 + -35x2 + 36x + -4x3 + (-9 * 4x2 + x2 * 4x2)) = 91
(315 + -35x2 + 36x + -4x3 + (-36x2 + 4x4)) = 91

Reorder the terms:
(315 + 36x + -35x2 + -36x2 + -4x3 + 4x4) = 91

Combine like terms: -35x2 + -36x2 = -71x2
(315 + 36x + -71x2 + -4x3 + 4x4) = 91

Solving
315 + 36x + -71x2 + -4x3 + 4x4 = 91

Solving for variable 'x'.

Reorder the terms:
315 + -91 + 36x + -71x2 + -4x3 + 4x4 = 91 + -91

Combine like terms: 315 + -91 = 224
224 + 36x + -71x2 + -4x3 + 4x4 = 91 + -91

Combine like terms: 91 + -91 = 0
224 + 36x + -71x2 + -4x3 + 4x4 = 0

The solution to this equation could not be determined.

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