Math Chapter Wise Arithmetic English MCQ TGT 2013 Q.The factors of x4 + x2 + 25 = 0 will be– A(x2 + 3x + 5) and (x2 – 3x + 5) B(x2 + 3x + 5) and (x2 + 3x – 5) C(x2 + x + 5) and (x2 – x + 5) D(x2 + x + 5) and (x2 –x –5) Show answer Correct answer: (x2 + 3x + 5) and (x2 – 3x + 5)