anonymous
  • anonymous
Solve 8x2 + 7x - 15 = - 7.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
say 8x2 you mean 8x^2, so for that move the -7 from the left side making the equation 8x^2 + 7x - 8 = 0 From there you simply use the quadratic equation: x = 1/16 (-7-sqrt(305)) x = 1/16 (sqrt(305)-7)
anonymous
  • anonymous
What would the answer come out to. Would it be something like \[\frac{ -7+\sqrt{305} }{ 16 }\]
anonymous
  • anonymous
@Littlemsadventuretime

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anonymous
  • anonymous
yes exactly:)
anonymous
  • anonymous
Is that the only answer or is there another
anonymous
  • anonymous
Nope thats it. I mean thats what i got
anonymous
  • anonymous
Ok great thank you!
anonymous
  • anonymous
Really quick would the answer to -x2 - 3x + 1 = 0 be \[\frac{ -3+\sqrt{13} }{ 2 }\]
anonymous
  • anonymous
@Littlemsadventuretime
anonymous
  • anonymous
yes:)

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