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  • Apr 5, 2006, 11:13 PM
    lindaklee
    discriminant
    What is the discriminant of the function 2x(to the 2nd power)-3x+1?
  • Apr 6, 2006, 01:01 AM
    kp2171
    3^2 -(4)(2)(1) = 1
  • Apr 6, 2006, 02:01 PM
    happybisaya
    Quote:

    Originally Posted by lindaklee
    What is the discriminant of the function 2x(to the 2nd power)-3x+1?

    Equation: 2x^2 - 3x + 1
    Just as long as your equation is quadratic in form, the x is not used here. Now we have to assign letters to each term where:
    a=2 (from 2x^2)
    b=-3 (from -3x)
    c=1 (from +1)
    to find the discriminant use this formula: b^2 -4ac (this is part of the quadratic formula)
    that is (-3)^2-4(2)(1)
    9-8
    =1 is your discriminant

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