Q. 154.0( 3 Votes )
Mark the correct A. positive
B. (ac – b2)(ax2 + 2bx + c)
C. negative
D. 0
Answer :
discriminant of ax2 + 2bx + c =0
and ax2 + 2bx + c
R3→ R3 – X R1 – R2
- (2ax + 2bx +c)(-b2 + ac) < 0
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