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mscrosscountry Group Title

Select one of the factors of 3x2 + 10x + 3

  • 2 years ago
  • 2 years ago

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  1. mscrosscountry Group Title
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    thats not one of my options though. (3x + 1) (3x + 3) (3x – 1) None of the above

    • 2 years ago
  2. myininaya Group Title
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    \[3x^2+9x+x+3\] I just found two factors of 3(3) that added up to be 10 Factor this by grouping

    • 2 years ago
  3. myininaya Group Title
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    What factors does 3x^2 and 9x have in common?

    • 2 years ago
  4. mscrosscountry Group Title
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    the factors they have in common is 3

    • 2 years ago
  5. myininaya Group Title
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    and x right?

    • 2 years ago
  6. myininaya Group Title
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    \[3x(x+3)+1(x+3)\] Now we have two terms. What do these two terms have in common?

    • 2 years ago
  7. mscrosscountry Group Title
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    so the answer is none of the above because its not one of my options

    • 2 years ago
  8. myininaya Group Title
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    we aren't done

    • 2 years ago
  9. myininaya Group Title
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    I was just asking you what 3x^2 and 9x had in common so that we can factor this beast

    • 2 years ago
  10. mscrosscountry Group Title
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    both have 3x in common?

    • 2 years ago
  11. myininaya Group Title
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    right so from the first two terms i factored out 3x giving me \[3x(x+3)+x+3\]

    • 2 years ago
  12. myininaya Group Title
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    But we can write this as \[3x(x+3)+1(x+3)\] since 1(x+3) is still x+3

    • 2 years ago
  13. myininaya Group Title
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    now what factors does 3x(x+3) and 1(x+3) have in common besides the factor 1?

    • 2 years ago
  14. mscrosscountry Group Title
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    3x again?

    • 2 years ago
  15. myininaya Group Title
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    no they both have the factor (x+3) in common

    • 2 years ago
  16. myininaya Group Title
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    \[(x+3)(3x+1)\]

    • 2 years ago
  17. mscrosscountry Group Title
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    so the answer is (3x + 1)

    • 2 years ago
  18. myininaya Group Title
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    x+3 and 3x+1 are both factors of the polynomial given

    • 2 years ago
  19. Sdowney Group Title
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    x+3 & 3x+1 are the factors

    • one year ago
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