1) Ta có : \(\left(-3\right)^6=3^6\) = 272
\(\left(-2\right)^4=2^4\) = 42
\(2\sqrt{\left(-3\right)^6}+3\sqrt{\left(-2\right)^4}\) =\(2\sqrt{27^2}+3\sqrt{4^2}=54+12=66\)
2) Ta có :\(\left(-3\right)^6=3^6=27^2\)
\(\sqrt{\left(-2\right)^8}=\sqrt{2^8}=16\)
\(-4\sqrt{\left(-3\right)^6}+\sqrt{\sqrt{\left(-2\right)^8}}=-108+4=-104\)