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anonymous

  • 5 years ago

factor 3m^2+14m-5

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  1. anonymous
    • 5 years ago
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    (3m-1)(m+5) i think

  2. anonymous
    • 5 years ago
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    that's what i thought. explain how you got it plz.

  3. anonymous
    • 5 years ago
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    3m*m=3m^2 -1*5=-5

  4. anonymous
    • 5 years ago
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    ummm, ok you need to pick a number that multiply to get the last digit of the polynomial and add or subtract to get the middle digit. So we know that 3*5+(-1)=14 so then it is safe to say that we are going to use -1 and 5 to solve this problem. You can check your answer by foiling the problem back out

  5. anonymous
    • 5 years ago
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    right. thank you!

  6. anonymous
    • 5 years ago
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    It is really a trail and error type problem although there are other ways you can try. After you look at enough of them you will get faster and it will take a lot less time per problem just practice and it will come to you

  7. anonymous
    • 5 years ago
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    thanx

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spraguer (Moderator)
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