Which of the following is the value of ?
- A360
- B100
- C260
- D420
Solution & Step-by-step Explanation
The given numerical expression mirrors the standard algebraic form by letting and :
Applying the identity for the difference of two cubes, :
Canceling out the matching quadratic trinomial factor from both the numerator and denominator reveals:
Substituting back the values assigned to and :
Applying the identity for the difference of two cubes, :
Canceling out the matching quadratic trinomial factor from both the numerator and denominator reveals:
Substituting back the values assigned to and :