Quadratic Equations

Determine the value of "m" that will give the quadratic 3x^2 + 4x + m = 0 :
a) two equal roots
b) no real roots.

asked by Mya
  1. For two equal roots, the discriminant has to be zero, ...
    b^2 - 4ac = 0
    16 - 4(3)(m) = 0
    16 = 12m
    m = ....

    For no real roots, b^2 - 4ac < 0 , so ....

    posted by Reiny

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