\(4^5+4^5+4^5+4^5-4.4.4.4.4.4\)
\(=4^5\left(1+1+1+1\right)-4^6\)
\(=4^5.4-4^6=4^6-4^6=0\)
4^5+4^5+4^5+4^5-4.4.4.4.4.4
=4^5.4-4^6
=4^6-4^6
=0
\(4^5+4^5+4^5+4^5-4.4.4.4.4.4\)
\(=4^5+4^5+4^5+4^5-4^6\)
\(=4^{5.4-6}\)
\(=4^{20-6}\)
\(=4^{14}\)