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

  • google app store apple app store

    • Question

      Solve log₂(x–1) + log₂(x+3) =

      3.
      A –9 + 2√2 Correct Answer Incorrect Answer
      B 3 + 2√3 Correct Answer Incorrect Answer
      C 5 + 2√3 Correct Answer Incorrect Answer
      D –1 + 2√3 Correct Answer Incorrect Answer

      Solution

      ATQ,

      (x–1)(x+3) = 8 x² + 2x –11 = 0 x = –1 ± 2√3 Only x >1 allowed → x = –1 + 2√3

      Practice Next
      ask-question