Find LCM of the following expressions :
$- 2 (x - 1) (x - 2) (x + 3)$ and $3 (x - 1) (x - 2) (x + 3) (x + 5)$

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Solution

$- 2 (x - 1) (x - 2) (x + 3); 3 (x - 1) (x - 2) (x + 3) (x + 5)$
$∴$ L.C.M $= - 2 \times 3 (x - 1) (x - 2) (x + 3) (x + 5)$
$= - 6 (x - 1) (x - 2) (x + 3) (x + 5)$

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