What is the value of the discriminant #f(x)= 2x^2 + 8x +3#?

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Answer 1 · 2018-04-24T23:48:22

#40#

The discriminant is the value under the radical in the Quadratic Formula, equal to

#b^2-4ac#

Our quadratic is in the form #ax^2+bx+c#, so we know

#a=2#

#b=8#

#c=3#

We plug the values into our discriminant expression to get

#8^2-4(2)(3)#

#=>64-24=color(blue)(40)#

Hope this helps!