Got stuck when factorizing x^4 - 4x^3 - 14x^2 + 36x + 72

Rubstep

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Oct 8, 2016
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Want to factorize the expression x^4 - 4x^3 - 14x^2 + 36x + 72 into the factors: (x^2 - 2x - 6)(x^2 - 2x - 12), but it seems impossible!!! :???: Someone plz help me...
 
Want to factorize the expression x^4 - 4x^3 - 14x^2 + 36x + 72 into the factors: (x^2 - 2x - 6)(x^2 - 2x - 12), but it seems impossible!!! :???: Someone plz help me...

Were those two factors given to you - or were you to derive those from scratch?
 
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