Subject
NSI নিয়োগ
Topic
জাতীয় নিরাপত্তা গোয়েন্দা সংস্থা (NSI) (সহকারী পরিচালক) - ০৮.১০.২০২১
The factors of 4x4+ 1 is -
The factors of 4x4+ 1 is -
ক)
(2x2+ 2x - 1) (2x2- 2x + 1)খ)
(2x2+ 2x + 1) (2x2- 2x + 1)গ)
(2x2+ 2x - 1) (2x2- 2x - 1)ঘ)
(2x2+ 2x + 1) (2x2- 2x - 1)Explanation
4x 4 + 1 = (2x 2 ) 2 + 1 = (2x 2 ) 2 + 2.2x 2 .1 + 1 2 - 4x 2 = (2x 2 + 1) 2 - (2x) 2 = (2x 2 + 2x + 1) (2x 2 - 2x + 1)Related questions
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