defence exam DGAFMS Group C 2025 Mock Test Series Quantitative Aptitude Number System Multiples and Factors
The factors of a2 - 1 - 2x - x2 are _______.
1
(a - x - 1) (a - x - 1)
2
(a + 1 + x) (a - 1 - x)
3
(a - x + 1) (a - x + 1)
4
(a - x + 1) (a - x - 1)