$0^4=0\cdot 0\cdot 0\cdot 0=0$

$1^4=1\cdot 1\cdot 1\cdot 1=1$

$2^4=2\cdot 2\cdot 2\cdot 2=4\cdot 4=16$

${\left(\frac{1}{2}\right)}^4=\frac{1}{2}\cdot \frac{1}{2}\cdot \frac{1}{2}\cdot \frac{1}{2}=\frac{1}{4}\cdot \frac{1}{4}=\frac{1}{16}$

${\left(0,3\right)}^4=0,3\cdot 0,3\cdot 0,3\cdot 0,3=0,09\cdot 0,09=0,0081$

${\left(-1\right)}^4=\left(-1\right)\cdot \left(-1\right)\cdot \left(-1\right)\cdot \left(-1\right)=1\cdot 1=1$

${\left(-\frac{1}{3}\right)}^4=\left(-\frac{1}{3}\right)\cdot \left(-\frac{1}{3}\right)\cdot \left(-\frac{1}{3}\right)\cdot \left(-\frac{1}{3}\right)=\frac{1}{9}\cdot \frac{1}{9}=\frac{1}{81}$

${\left(-1\frac{1}{2}\right)}^4={\left(-\frac{3}{2}\right)}^4=\left(-\frac{3}{2}\right)\cdot \left(-\frac{3}{2}\right)\cdot \left(-\frac{3}{2}\right)\cdot \left(-\frac{3}{2}\right)=\frac{9}{4}\cdot \frac{9}{4}=\frac{81}{16}=5\frac{1}{16}$

${\left(-1,2\right)}^4={\left(-1\frac{2}{10}\right)}^4={\left(-1\frac{1}{5}\right)}^4={\left(-\frac{6}{5}\right)}^4=\left(-\frac{6}{5}\right)\cdot \left(-\frac{6}{5}\right)\cdot \left(-\frac{6}{5}\right)\cdot \left(-\frac{6}{5}\right)=\frac{36}{25}\cdot \frac{36}{25}=\frac{1296}{625}=2\frac{46}{625}$