2022 · Q9
If x = 9999, then what is the value of the following?(4x³ - x)/((2x + 1)(6x - 3))
Elementary MathematicsAlgebra
- A1111
- B2222
- C3333
- D6666
Explanation
Factor numerator and denominator: (4x³-x)/((2x+1)(6x-3)) = x(2x-1)(2x+1)/(3(2x+1)(2x-1)) = x/3. With x = 9999 this is 3333. The large value of x is a red herring meant to invite brute-force computation. Hence the keyed option is C.