Question

✓64 + V-144 √8² + · 122 = 8 + · V 122 = 8 +

Answer 1

$\begin{gathered} \sqrt[]{64}+\sqrt[]{-144} \\ (\sqrt[]{-144})=\sqrt[]{144\times(-1)}=\sqrt[]{144}\times\sqrt[]{-1}=12i \\ \sqrt[]{64}+\sqrt[]{-144}=8+12i \end{gathered}$$a+bi=8+12i$