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rubyhunter Group Title

x2-6x-6=0

  • one year ago
  • one year ago

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  1. richyw Group Title
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    we literally just told you how to solve these problems in the last one. For \(f(x)=ax^2+bx+c=0\) \[x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}\]Is there something you don't understand? If so just ask! We're not here to do other peoples homework for them!

    • one year ago
  2. rubyhunter Group Title
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    ummm ur being rude the other one was easy this one has me confused, and just givin me a formula where i can miss up isnt helpin me -_-

    • one year ago
  3. richyw Group Title
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    what answer did you get when you tried plugging into the formula?

    • one year ago
  4. damith2013 Group Title
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    \[\left( x-3 \right)^{2}-3^{2}-6=0\] \[\left( x-3 \right)^{2}-15=0\] \[\left( x-3 \right)^{2}=15\] \[\left( x-3 \right)=\pm \sqrt{15}\] \[x =\pm \sqrt{15}+3\] \[x =\sqrt{15}+3\] or \[x =3-\sqrt{15}\]

    • one year ago
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