Math Chapter Wise Theory Of Equation And Inequations English MCQ UP Higher Asst. Prof. 2021 Q.If 2n – 15 = x2 then An = 2 or n = 4 Bn = 4 or n = 6 Cn = 2 or n = 8 Dn = 4 or n = 8 Show answer Correct answer: n = 4 or n = 6