The difference between the roots of the equation x 2 -7x-9= 0 is

CA Foundation · Quantitative Aptitude · MTP · May 2026
The difference between the roots of the equation x 2 -7x-9= 0 is
(A) A. 7
(B) B. √85
(C) C. 9
(D) D. 2√85

Suggested Answer and Working Notes:

Correct Answer: Option (B)

B. √85

Topics: Part-A: Business Mathematics

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