For what real values of does the quadratic 12x^2+kx+27=0 have nonreal roots
1 answer:
Answer:
k<±36
Step-by-step explanation:
Δ<0 (no real roots)
b²-4ac<0
k²-4x12x27<0
k²-1296<0
k²<1296
k<±36
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