If x+1x=13−−√,x+1x=13, then 3x(x2−1)3x(x2−1) equal to? – McqOptions

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1.	If x+1x=13−−√,x+1x=13, then 3x(x2−1)3x(x2−1) equal to?
A.	313−−√313313−−√313313−−√313−−√313−−√313−−√33313−−√13−−√131313−−−−−−√√313
B.	13−−√13131313−−√13131313−−√1313−−√1313−−√1313−−√1313−−√1313−−√1313−−√13−−√13−−√13−−√13−−√131313−−−−−−√√131313131313
C.	1
D.	3
Answer» B. 13−−√13131313−−√13131313−−√1313−−√1313−−√1313−−√1313−−√1313−−√1313−−√13−−√13−−√13−−√13−−√131313−−−−−−√√131313131313

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