2y4 - 14y2 + 2 এর উৎপাদকে বিশ্লেষণ কোনটি?
Solution
Correct Answer: Option C
2y4 - 14y2 + 2
= 2{(y2)2 + 2 . y2 . 1 + (1)2} - 9y2}
= 2{(y2 + 1)2 - (3y)2}
= 2(y2 + 3y + 1) (y2 - 3y + 1)
= 2{(y2)2 + 2 . y2 . 1 + (1)2} - 9y2}
= 2{(y2 + 1)2 - (3y)2}
= 2(y2 + 3y + 1) (y2 - 3y + 1)
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