posted by Mya

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

1. Reiny

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 ....

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