Find the value of k(= 3x²-k√3x-k)
Answers
Answered by
0
Answer:
a=3, b=-k√3, c=-k
if the roots are real
b²-4ac>0
(-k√3)²-4(3)(-k)>0
3k²+12k>0
3k(k+4)>0
k>-4
if the roots are equal and real
b²-4ac=0
(k√3)²-4(3)(-k)=0
3k²+12k=0
3k(k+4)=0
k=-4
if the roots are not real
b²-4ac<0
(k√3)²-4(3)(-k)<0
3k²+12k<0
3k(k+4)<0
k<-4
Similar questions