anonymous
  • anonymous
2m^2+km-3 find all intergers of k so that the trinomial can be factored.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
2*-3=-6 3-2=1 k=1,-1 6-1=5 6*-1=-6 k=5,-5
anonymous
  • anonymous
thank you so much! im ust confused as to how you did that? could you possibly explain?
anonymous
  • anonymous
2*-3=-6 k=a-b so that a*b=-6

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anonymous
  • anonymous
but k is b?
anonymous
  • anonymous
like how would i solve 7m^2+km-5 because i still dont understand it at all...
anonymous
  • anonymous
7*-5=35 thenk=34 or -34
anonymous
  • anonymous
correction above 7*-5=-35 a=35,b=-1,35*-1=-35 a=-35,b=1,-35*1=-35
anonymous
  • anonymous
if the product of a*c=-ve,then always subtract if the product of a*c=+ve,then always break b
anonymous
  • anonymous
okay that makes a ittle more sense. thank you
anonymous
  • anonymous
i am talking of ax^2+bx+c=0
anonymous
  • anonymous
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
anonymous
  • anonymous
where did the 1 come from when you got 34?
anonymous
  • anonymous
make factors of35 |dw:1442721684584:dw|
anonymous
  • anonymous
35-1=34 -35+1=-34 7-5=2 -7+5=-2

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