discriminant of ax2 + 2bx + c =0 and ax2 + 2bx + c R3→ R3 – X R1 – R2- (2ax + 2bx +c)(-b2 + ac) < 0

RD Sharma - Volume 1

Exercise 6.1

Exercise 6.2

Exercise 6.3

Exercise 6.4

Exercise 6.5

MCQ

Very short answer

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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Mark the correct A. positiveB. (ac – b2)(ax2 + 2bx + c)C. negativeD. 0