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1.
- A. 2
- B. 2
- C. 2
- D. 2
Answer: Option D
Explanation:
3/x + 4/(x + 1) = 2
= > {3(x + 1) + 4x }/x(x + 1) = 2
= > {3x + 3 + 4x} = 2 (x2 + x)
= > 7x + 3 = 2x2 + 2x
= > 2x2 - 5x - 3 = 0
= > 2x2 - 6x + x - 3 = 0
= > 2x(x - 3) + 1(x - 3) = 0
= > (2x + 1) (x - 3) = 0
if,
x - 3 = 0
= > x = 3
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