The product of two expression is x3+x2−44x−84. If the HCF of these two expressions is (x+6), then their LCM will be
A
(x+2)(x+7)
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B
(x+2)(x−7)
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C
(x−2)(x+7)
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D
(x−2)(x−7)
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Solution
The correct option is B(x+2)(x−7) LCM x HCF = Product of the expressions ⇒LCM=Prod.ofexpressionsHCF = x3+x2−44x−84(x+6) ∴ Reqd LCM = x2−5x−14=(x−7)(x+2)