2\\x>5" alt="1.\;81^{\frac14}-3\sqrt3\cdot3^{\frac12}=\sqrt[4]{81}-3\sqrt3\cdot\sqrt3=3-3\cdot3=3-9=-6\\
2.\;\left(\frac14\right)^{x-3}<\frac1{16}\\\left(\frac14\right)^{x-3}<\left(\frac14\right)^2\\x-3>2\\x>5" align="absmiddle" class="latex-formula">