anonymous
  • anonymous
Solve. x2 + x – 6 = 0 A. {2, 3} B. {2, –3} C. {3, –2} D. {6, –1}
Mathematics
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
@Michele_Laino
pooja195
  • pooja195
Do we need to use the quadratic formula again or can we factor?
anonymous
  • anonymous
um, it doesnt say!

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pooja195
  • pooja195
ok lets just factor |dw:1433013934246:dw|
pooja195
  • pooja195
what multiplies to -6 but adds up to -1?
pooja195
  • pooja195
facotor out -6 if it helps :)
pooja195
  • pooja195
|dw:1433014034240:dw|
anonymous
  • anonymous
oh okay
pooja195
  • pooja195
(x-3)=0 (x+2)=)
pooja195
  • pooja195
x-3=0 x+2=0 solve to get the answers :)
anonymous
  • anonymous
3 and -2
pooja195
  • pooja195
yep
anonymous
  • anonymous
Oh Jee use quadratic equation formula... x2 + x – 6 = 0 => ax^2 + bx + c =o \[\frac{-b \pm \sqrt{b ^{2}-4ac} }{ 2a}\]
anonymous
  • anonymous
so c?
anonymous
  • anonymous
x = -3, x = 2
pooja195
  • pooja195
yes
anonymous
  • anonymous
okay! i will post another question!
pooja195
  • pooja195
:)

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