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anonymous

  • 5 years ago

Which of the following trinomials can be factored? a. 3b2+4b+1 b.3b2+6b+14 c. 3b2+8b+1 d. 3b2+30b+2 Please show the work on how you got it factored. Thank you

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  1. amistre64
    • 5 years ago
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    any of them can be run thru the quadratic formula; what defines a factoring?

  2. amistre64
    • 5 years ago
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    3.2 = 6; and i cant see and factors of 6 that add up to 30

  3. amistre64
    • 5 years ago
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    or 8

  4. amistre64
    • 5 years ago
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    a looks good for it tho

  5. amistre64
    • 5 years ago
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    and b maybe

  6. anonymous
    • 5 years ago
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    yeah a is correct but can u show me how u factor it. Thanks tips

  7. amistre64
    • 5 years ago
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    3.1 = 3 3+1 = 4 (x+3)(x+1)

  8. amistre64
    • 5 years ago
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    forgot to divide out the 3 again

  9. amistre64
    • 5 years ago
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    (x+3/3)(x+1/3) (x+1)(3x+1)

  10. amistre64
    • 5 years ago
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    thats better

  11. amistre64
    • 5 years ago
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    (x /3)(x /3) 3b2+6b+14 3(14) = 42 i dont think factors of 42 will add to get 6

  12. amistre64
    • 5 years ago
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    5.1=5 4.2=8 3.3=9 none of which are 42

  13. amistre64
    • 5 years ago
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    so i think a is the only factorable one

  14. anonymous
    • 5 years ago
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    so the answer would be (x+1)(3x+1) then?

  15. amistre64
    • 5 years ago
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    yes, for "a"

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