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Let a > 0, b > 0 and c > 0. Then both the roots of the equation ax 2 + bx + c = 0: (A) are real and negative (B) have negative real parts (C) have positive real parts (D) none of these



Let a > 0, b > 0 and c > 0. Then both the roots of the equation
ax2 + bx + c = 0:


        (A)    are real and negative


        (B)    have negative real parts


        (C)    have positive real parts


        (D)    none of these


Grade:10

2 Answers

Simran Bhatia
348 Points
8 years ago

jitender lakhanpal
62 Points
8 years ago

hi hrishant

ans. D)

nothing can be said about the nature of roots as the discriminant can take any value 

for eg b = 1 , a = 2 ,c = 3 D<0 so the roots would be imaginary 

and for b = 5 a = 1 c = 1  D >0 so the roots would be real

so niether of the options given is can be always true

jitender

askiitians expert

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