anonymous
  • anonymous
True or False. The equation 4x2 + 16 = 0 is an example of a quadratic equation. Explain. I think it's false because a quadratic equation needs to be in the form of ax^2 + bx +c = 0... I have a feeling I'm wrong though..
Mathematics
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SOLVED
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jamiebookeater
  • jamiebookeater
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Zarkon
  • Zarkon
it is of that form...a=4,b=0,c=16
UnkleRhaukus
  • UnkleRhaukus
yeah b is just zero, and that is fine
Mertsj
  • Mertsj
It contains a second power of x as its highest power so it is quadratic.

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Mertsj
  • Mertsj
In other words, it is a second degree equation so it is quadratic.
anonymous
  • anonymous
but could C be zero too? ax^2 + 16 + 0 =0 ?
anonymous
  • anonymous
ooooh ok, the second degree equation rings a bell
Mertsj
  • Mertsj
Yes a quadratic equation is of the form ax^2 +bx+c where a is not 0. b and c can be 0 but not a
Mertsj
  • Mertsj
x^2=0 x^+3x=0 x^2-5x+7=0 All are quadratic equations.
UnkleRhaukus
  • UnkleRhaukus
*x^2+3x=0

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