Solución
2
x
⋅
ln
2
⋅
log
3
7
x
2
+
2
x
⋅
2
x
ln
7
ln
3
{2^x} \cdot \ln 2 \cdot {\log _3}{7^{{x^2}}} + {2^x} \cdot {{2x\ln 7} \over {\ln 3}}
2
x
⋅
ln
2
⋅
lo
g
3
7
x
2
+
2
x
⋅
ln
3
2
x
ln
7