If \[\mathbf{x+}\frac{\mathbf{1}}{\mathbf{x}}\mathbf{=3}\], then the value of \[\frac{{{\mathbf{x}}^{\mathbf{4}}}\mathbf{+3}{{\mathbf{x}}^{\mathbf{3}}}\mathbf{+5}{{\mathbf{x}}^{\mathbf{2}}}\mathbf{+3x+1}}{{{\mathbf{x}}^{\mathbf{4}}}\mathbf{+1}}\]

If \[\mathbf{x+}\frac{\mathbf{1}}{\mathbf{x}}\mathbf{=3}\], then the v

1.	If \[\mathbf{x+}\frac{\mathbf{1}}{\mathbf{x}}\mathbf{=3}\], then the value of \[\frac{{{\mathbf{x}}^{\mathbf{4}}}\mathbf{+3}{{\mathbf{x}}^{\mathbf{3}}}\mathbf{+5}{{\mathbf{x}}^{\mathbf{2}}}\mathbf{+3x+1}}{{{\mathbf{x}}^{\mathbf{4}}}\mathbf{+1}}\]
A.	3
B.	5
C.	7
D.	9
Answer» B. 5

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If \[\mathbf{x+}\frac{\mathbf{1}}{\mathbf{x}}\mathbf{=3}\], then the value of \[\frac{{{\mathbf{x}}^{\mathbf{4}}}\mathbf{+3}{{\mathbf{x}}^{\mathbf{3}}}\mathbf{+5}{{\mathbf{x}}^{\mathbf{2}}}\mathbf{+3x+1}}{{{\mathbf{x}}^{\mathbf{4}}}\mathbf{+1}}\]

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