## College Algebra (11th Edition)

$-19+9i$
Removing the grouping symbols and the combining the real parts and the imaginary parts, the given expression $(-11+2i)-(8-7i) ,$ simplifies to \begin{array}{l}\require{cancel} -11+2i-8+7i \\\\= (-11-8)+(2i+7i) \\\\= -19+9i .\end{array}