The factor of 4x4+1 is

A (2x2+2x-1)(2x2-2x+1)
B (2x2+2x+1)(2x2-2x+1)
C (2x2+2x-1)(2x2-2x-1)
D (2x2+2x+1)(2x2-2x-1)

Correct Answer: (2x2+2x+1)(2x2-2x+1)

দেয়া আছে,4x4 + 1 = 4x24x2 + 1 - 4x2 = [(2x2)2 + 2×2x×1 + 12] - 4x2 = (2x2 + 1) - (2x)2 = (2x2 + 1 + 2x)(2x2 + 1 - 2x) = (2x2 + 2x + 1)(2x2 - 2x + 1)
Bissoy MCQ
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