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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