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anonymous

  • one year ago

2m^2+km-3 find all intergers of k so that the trinomial can be factored.

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  1. anonymous
    • one year ago
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    2*-3=-6 3-2=1 k=1,-1 6-1=5 6*-1=-6 k=5,-5

  2. anonymous
    • one year ago
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    thank you so much! im ust confused as to how you did that? could you possibly explain?

  3. anonymous
    • one year ago
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    2*-3=-6 k=a-b so that a*b=-6

  4. anonymous
    • one year ago
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    but k is b?

  5. anonymous
    • one year ago
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    like how would i solve 7m^2+km-5 because i still dont understand it at all...

  6. anonymous
    • one year ago
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    7*-5=35 thenk=34 or -34

  7. anonymous
    • one year ago
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    correction above 7*-5=-35 a=35,b=-1,35*-1=-35 a=-35,b=1,-35*1=-35

  8. anonymous
    • one year ago
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    if the product of a*c=-ve,then always subtract if the product of a*c=+ve,then always break b

  9. anonymous
    • one year ago
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    okay that makes a ittle more sense. thank you

  10. anonymous
    • one year ago
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    i am talking of ax^2+bx+c=0

  11. anonymous
    • one year ago
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    in the above example k=2,-2 or k=34,-34 7-5=2,7*-5=-35 -7+5=-2,-7*5=-35 35-1=34,35*-1=-35 -35+1=-34,-35*1=-35

  12. anonymous
    • one year ago
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    where did the 1 come from when you got 34?

  13. anonymous
    • one year ago
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    make factors of35 |dw:1442721684584:dw|

  14. anonymous
    • one year ago
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    35-1=34 -35+1=-34 7-5=2 -7+5=-2

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