If the HCF of the polynomials \( x^{3}+p x+q \) and \( x^{3} \) (W) \( +r x^{2}+l x+x \) is \( x...

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If the HCF of the polynomials \( x^{3}+p x+q \) and \( x^{3} \)
(W) \( +r x^{2}+l x+x \) is \( x^{2}+a x+b \), then their LCM is \( (r \neq 0) \)
(a) \( \left(x^{2}+a x+b\right)(x+a)(x+a-r) \)
(b) \( \left(x^{2}+a x+b\right)(x-a)(x-a+r) \)
(c) \( \left(x^{2}+a x+b\right)(x-a)(x-a-r) \)
(d) \( \left(x^{2}-a x+b\right)(x-a)(x-a+r) \)
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