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x8-2x4+1=0, x>0

A=p+ q এবং B = p2 - q2.

উৎপাদকে বিশ্লেষণ কর : y4 - 79y2 + 1.

Created: 1 year ago | Updated: 1 year ago
Updated: 1 year ago

y4-79y2+1 =(y2)2+2×y2×1+12-81y2 =(y2+1)2-(9y)2          [a2+2ab+b2=(a+b)2] =(y2+1+9y)(y2-1-9y)     [a2-b2=(a+b)(a-b)]ans.

1 year ago

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