P pboland New member Joined Feb 7, 2006 Messages 41 Apr 5, 2006 #1 Use the discriminant to determine whether the quadratic expression 3x^2+5x-1 can be factored. If not prime, factor it. Discriminant is a=3,b=5 and c=-1 b^2-4ac 5^2-4(3)(1) =37. Cannot be factored.
Use the discriminant to determine whether the quadratic expression 3x^2+5x-1 can be factored. If not prime, factor it. Discriminant is a=3,b=5 and c=-1 b^2-4ac 5^2-4(3)(1) =37. Cannot be factored.
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,325 Apr 5, 2006 #2 You lost your c=-1, but managed the right value. "Prime"?? How about "Not the Perfect Square of an Integer"?
You lost your c=-1, but managed the right value. "Prime"?? How about "Not the Perfect Square of an Integer"?
