anonymous
  • anonymous
I need to solve 2x^2 = 3x + 2. Can anyone show me how?
Mathematics
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anonymous
  • anonymous
I need to solve 2x^2 = 3x + 2. Can anyone show me how?
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
using the quadratic formula
anonymous
  • anonymous
2x^2 - 3x - 2 = 0
anonymous
  • anonymous
just plug it in to the formula then?

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anonymous
  • anonymous
which part do you not understand?
anonymous
  • anonymous
I guess I don't know the formula or understand how to use it
anonymous
  • anonymous
for a quadratic equation in the form \[ax^2+bx+c\]x is \[(-b±sqrt(b^2-4ac))/2a\] You'll probably have two solutions, so use both the plus and the minus.
anonymous
  • anonymous
okay \[x = \frac{-b \pm \sqrt{b^2 - 4*a*c}}{2a}\] thats the formula now you have 2x^2 - 3x - 2 = 0 ax^2 + bx + c = 0 plug in make sense?
anonymous
  • anonymous
can I plug numbers into the equation?
anonymous
  • anonymous
into the quad. formula
anonymous
  • anonymous
Thank you!
anonymous
  • anonymous
sure ^_^

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