Answer: you add 3+2 and that =5. There are 2 i. That is equal to 2i. Final answer: 5+2i
Step-by-step explanation:
[tex]\bf (3+i)(2+i)\implies \begin{cases} 3(2+i)\\ 6+3i\\[-0.5em] \hrulefill\\ i(2+i)\\ 2i+i^2\\ 2i+(-1)\\ 2i-1 \end{cases}\implies 6+3i+2i-1\implies 5+5i[/tex]
