smarty
  • smarty
Describe the nature of the roots of the equation 2x^2 + 3x = –3.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
\[\frac{-b \pm \sqrt{b^2-4ac}}{2a}\] a=2 b=3 c=3 subtitution and solve
anonymous
  • anonymous
imaginary numbers
smarty
  • smarty
one real root two real roots two imaginary roots cannot be determined

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smarty
  • smarty
So C? two imaginary roots?
smarty
  • smarty
@Nancy_Lam
anonymous
  • anonymous
yeah
smarty
  • smarty
Thanks~
smarty
  • smarty
what about: 7x^2 = 4x + 1.
smarty
  • smarty
@sritama
anonymous
  • anonymous
two imaginary roots
smarty
  • smarty
How can you tell?
smarty
  • smarty
For ex: x^2 – 4x + 4 = 0. how would you tell for that one?
anonymous
  • anonymous
for the 2nd equation it is b
anonymous
  • anonymous
7x^2 = 4x + 1 , i mean
smarty
  • smarty
haha alright what about : x^2 – 4x + 4 = 0
anonymous
  • anonymous
two real roots,and they are same
anonymous
  • anonymous
x^2 – 4x + 4 = 0 (x-2)^2
anonymous
  • anonymous
all you have to get from the value of \[\sqrt{b^2-4ac}\]
smarty
  • smarty
Ohok. thanks!
smarty
  • smarty
So the root of hte discriminant.
anonymous
  • anonymous
if the value is negatives, roots are imaginary if positive . roots are real if 0,roots are real and same
anonymous
  • anonymous
yeah

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