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If P(x)= (x+2) (x^2-4x - 21),Q(x)= (x - ...

If `P(x)= (x+2) (x^2-4x - 21),Q(x)= (x - 7)(2x^2+ x -6)` and their HCF is `x^2-5x - 14` then LCM of `P(x) & Q(x)` is

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