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2x^2+4x+3=0 find the discriminant?
10 points :D
please show work
4 Answers
- 1 decade agoFavorite 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 - JosephineLv 71 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)
- Anonymous1 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