#### Answer

$4+8i$

#### Work Step by Step

$\bf{\text{Solution Outline:}}$
To simplify the given expression, $
(-1+i)+(2+5i)+(3+2i)
,$ remove the grouping symbols first. Then combine the real numbers and combine the imaginary numbers
$\bf{\text{Solution Details:}}$
Removing the grouping symbols, the expression above is equivalent to
\begin{array}{l}\require{cancel}
-1+i+2+5i+3+2i
.\end{array}
Combining the real numbers and combining the imaginary numbers result to
\begin{array}{l}\require{cancel}
(-1+2+3)+(i+5i+2i)
\\\\=
4+8i
.\end{array}