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Mathematics 13 Online
OpenStudy (anonymous):

**I will give you a medal to answer this** Find the least common multiple of x² + x – 12 and x² + 2x – 15.

OpenStudy (anonymous):

factor both quadratic expressions. Hint: you will find that one of the factors for both is common. Take that particular factor only ONCE, and then take the other 2 . You will have 3 factors for the LCM

OpenStudy (anonymous):

Begin by factoring out both quadratics. Write that out and show your work.

OpenStudy (anonymous):

(x+4)(x-3) and (x+5)(x-3)

OpenStudy (anonymous):

Good work! Notice that (x - 3) is common to both. So, your LCM will include only the different factors. So, you will take (x - 3) only once, and then take the other 2 factors for a total of 3 factors.

OpenStudy (anonymous):

okayy so the answer is ... (x+4)(x+5)(x-3)

OpenStudy (anonymous):

Yes! Excellent!

OpenStudy (anonymous):

thank you (:

OpenStudy (anonymous):

yw! thx for the recognition!

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