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ErikaaLynn Group Title

HELP ME 22. x² + 10x = 18 (1 point) –11.56, 1.56 11.56, 1.56 –11.56, –1.56 11.56, –1.56 23. x² + 9x – 14 = 0 (1 point) 10.35, 1.35 10.35, –1.35 –10.35, –1.35 –10.35, 1.35 24. Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. x² + 3 = –4x (1 point) 1, 3 –1, –3 1, –3 –1, 3

  • 2 years ago
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  1. brinethery Group Title
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    I'll help you on the last one. The other ones, you just plug into the quadratic formula which is very easy. x^2 +4x +3 = 0 (x+1)(x+3) = 0 x can equal -1, and x can equal -3 in order the eqn to equal zero. Try plugging in the numbers to see for yourself.

    • 2 years ago
  2. brinethery Group Title
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    You've got a polynomial in the form of ax^2 +bx +c. Here's the quadratic formula: http://0.tqn.com/d/create/1/0/i/9/9/-/Quadratic.formula.jpg For the first one, a=1 b=10 c=-18 You can solve this, it's really easy! Just plug the numbers in.

    • 2 years ago
  3. brinethery Group Title
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    I guess she doesn't care. Good luck passing your exam!

    • 2 years ago
  4. ErikaaLynn Group Title
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    no im plugginq in the things uu told me , srry i didnt replay :)

    • 2 years ago
  5. joevarela Group Title
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    go to mathway.com click on your math level i use it to helps a bunch!! :)

    • 2 years ago
  6. Rohangrr Group Title
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    brinethery is quite to the point

    • 2 years ago
  7. brinethery Group Title
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    @Rohangrr I'm very interested in helping people who want to know HOW to do the problem and giving them a thorough explanation on how to do a problem b/c I've been there. I know what it's like to have a teacher who barely touches on how to do a problem and then sets you free to do the homework even though you have almost no clue of what's going on. I guess you can say that I'm more interested in teaching the person to fish instead of handing it to them. I just want people to get value in my explanation and find it useful for the longterm. All I ask is that they are just as interested in learning the process as I am in explaining it. I trust that Erika was, but some people on here just want to pass their class and end up going into higher level maths with no clue of what's going on.

    • 2 years ago
  8. Rohangrr Group Title
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    @brinethery thanx refer different books!

    • 2 years ago
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