1.5 Lösning 5bb

\(\begin{array}{rclcl} x^{1 \over 4} & = & 2 & \qquad | & (\,\cdot\,)^4 \\ (x^{1 \over 4})^4 & = & 2^4 & & \\ x^{{1 \over 4} \cdot 4} & = & 16 & & \\ x & = & 16 & & \\ \end{array}\)