The expression on the left hand side is,
[tex]\begin{gathered} (2+x)^4=((2+x)^2)^2 \\ =(4+x^2+4x)^2 \\ =(16+x^4+16x^2+8x^2+8x^3+32x) \end{gathered}[/tex]The expression on the right hand side is ,
[tex]16+x^4[/tex]Thus,
[tex]\text{LHS}\ne RHS[/tex]Thus, it it not true.