anonymous
  • anonymous
do with the quadratic formula or equation. x^2 + 4x + 4 = 7????
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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radar
  • radar
That sets up nicely for factoring
anonymous
  • anonymous
I would always try to factor first just because its faster personaly i only use the quadratic if I have to
anonymous
  • anonymous
my teacher told me to put it into a=1 b=4 c= - 3 form or something and then put it into the equation (i know what the equation is im just stuck)

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anonymous
  • anonymous
ok then it sounds like you are going to have to do it with the quadratic.
radar
  • radar
I agree, I didn't see the 7
anonymous
  • anonymous
subtract both sides by 7 then you get x^2=4x-3 a=1 b=4 c =-3 use qaud eq x=(-b+/-sqrt(b^2-4ac))/(2a)
anonymous
  • anonymous
i keep coming up with -2 + or - radical 7
anonymous
  • anonymous
is that wrong or right im confused
radar
  • radar
That looks like it would do it.
anonymous
  • anonymous
did you apply the formula correctly? If you did, you should get the right answer.
anonymous
  • anonymous
o okay thank u so much!
anonymous
  • anonymous
should get (-4+sqrt28)/2 and (-4-sqrt28)/2
radar
  • radar
\[-2\pm \sqrt{7}\]
anonymous
  • anonymous
i got what radar said. not eric8 ahh which one is right
radar
  • radar
I think EricC8 can be simplified for example the 28 is 7 x 4 and the sq root of 4 could be taken out of the radical
anonymous
  • anonymous
o okay thank u so much!
radar
  • radar
then the denominator 2 could be divided into each term
anonymous
  • anonymous
oh i see what you mean
radar
  • radar
By Jove I believe you've got it!
anonymous
  • anonymous
haha thank u so much now ill be able to get an a+ on the test (:
radar
  • radar
Hope so, good luck on the test.
anonymous
  • anonymous
thanks

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