Respuesta :

Answer:

2x

Step-by-step explanation:

[tex]\bullet\ (x^2)^{\prime}=2x\\\\\bullet\ (7)^{\prime}=0[/tex]

[tex]\Longrightarrow f^{\prime }\left( x\right) =\left( x^{2}+7\right)^{\prime } =(x^2)^{\prime}+(7)^{\prime}=2x[/tex]