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CDS 2022 · PYQ · Algebra · medium

If x = 9999, then what is the value of (4x³ - x)/((2x+1)(6x-3))?

Answer

The correct answer is A: 3333. 4x³-x = x(2x-1)(2x+1); (2x+1)(6x-3) = 3(2x+1)(2x-1). So expression = x/3 = 9999/3 = 3333.

  1. A.3333✓ Correct
  2. B.6666
  3. C.1111
  4. D.2222

Explanation

4x³-x = x(2x-1)(2x+1); (2x+1)(6x-3) = 3(2x+1)(2x-1). So expression = x/3 = 9999/3 = 3333.
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