📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

  • google app store apple app store

    • Question

      Find the coefficient of x³ in (2x −

      3)⁶.
      A 3520 Correct Answer Incorrect Answer
      B -4320 Correct Answer Incorrect Answer
      C -6620 Correct Answer Incorrect Answer
      D 4205 Correct Answer Incorrect Answer

      Solution

      ATQ,

      ATQ,

      General term: Tₖ₊₁ = C(6,k)(2x(6−k)(−3)k For x³ → power of x = 3 → (6 − k) = 3 ⇒ k = 3 Coeff = C(6,3)·2³·(−3)³ = 20·8·(−27) = −4320

      Practice Next
      ask-question