EXPLANATION
Given the expression:
[tex]\frac{2x}{x^2+1},\text{ x=4}[/tex]
Substituting x=4:
[tex]\frac{2\cdot4}{4^2+1}[/tex]
Simplifying the power and multiplying numbers:
[tex]\frac{8}{16+1}[/tex]
Adding numbers:
[tex]=\frac{8}{17}[/tex]
The answer is 8/17
