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2x^2+4x+3=0 find the discriminant?

10 points :D

Update:

please show work

4 Answers

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  • 1 decade ago
    Favorite Answer

    The discriminant is important because it informs you of the nature of the roots: B^2-4(A)(C) It's part of the quadratic formula

    **If the answer is under 0, then No Real # Solution

    **If it's equal to 0, then the roots are equal and real

    **If it's greater than 0 then it's a real # solution with distinct answers.

    So using the formula above we get (4)^2 -(4)(2)(3)=

    -8,<===Answer

    Because -8<0...or the solution is less than 0, it means there's no real # solution

    Hope that helped

    Source(s): taking intermediatealg this semester
  • 1 decade ago

    a = 2 b = 4 c = 3

    The discriminant is part of the quadratic formula

    b^2 - 4ac

    Gives

    4^2 - 4*2*3 = 16 - 24 = -8

    (incidently this shows there are no real roots because the answer is negative)

  • Anonymous
    1 decade ago

    Discriminant of AX^2 + BX + C = 0 is B^2 - 4AC.

    A = 2

    B = 4

    C = 3

    B^2 - 4AC

    = (4)^2 - 4*2*3

    = 16 - 24

    = -8

  • 1 decade ago

    discriminant = b^2-4ac

    a= 2. b= 4, c= 3

    d= 4^2-4(2)(3)= 16-24= -8

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