(x^2-7x+12)(2x^2-x-1)=0

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Solution for (x^2-7x+12)(2x^2-x-1)=0 equation: 


Simplifying
(x2 + -7x + 12)(2x2 + -1x + -1) = 0

Reorder the terms:
(12 + -7x + x2)(2x2 + -1x + -1) = 0

Reorder the terms:
(12 + -7x + x2)(-1 + -1x + 2x2) = 0

Multiply (12 + -7x + x2) * (-1 + -1x + 2x2)
(12(-1 + -1x + 2x2) + -7x * (-1 + -1x + 2x2) + x2(-1 + -1x + 2x2)) = 0
((-1 * 12 + -1x * 12 + 2x2 * 12) + -7x * (-1 + -1x + 2x2) + x2(-1 + -1x + 2x2)) = 0
((-12 + -12x + 24x2) + -7x * (-1 + -1x + 2x2) + x2(-1 + -1x + 2x2)) = 0
(-12 + -12x + 24x2 + (-1 * -7x + -1x * -7x + 2x2 * -7x) + x2(-1 + -1x + 2x2)) = 0
(-12 + -12x + 24x2 + (7x + 7x2 + -14x3) + x2(-1 + -1x + 2x2)) = 0
(-12 + -12x + 24x2 + 7x + 7x2 + -14x3 + (-1 * x2 + -1x * x2 + 2x2 * x2)) = 0
(-12 + -12x + 24x2 + 7x + 7x2 + -14x3 + (-1x2 + -1x3 + 2x4)) = 0

Reorder the terms:
(-12 + -12x + 7x + 24x2 + 7x2 + -1x2 + -14x3 + -1x3 + 2x4) = 0

Combine like terms: -12x + 7x = -5x
(-12 + -5x + 24x2 + 7x2 + -1x2 + -14x3 + -1x3 + 2x4) = 0

Combine like terms: 24x2 + 7x2 = 31x2
(-12 + -5x + 31x2 + -1x2 + -14x3 + -1x3 + 2x4) = 0

Combine like terms: 31x2 + -1x2 = 30x2
(-12 + -5x + 30x2 + -14x3 + -1x3 + 2x4) = 0

Combine like terms: -14x3 + -1x3 = -15x3
(-12 + -5x + 30x2 + -15x3 + 2x4) = 0

Solving
-12 + -5x + 30x2 + -15x3 + 2x4 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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