College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 1 - Review Exercises: 21

Answer

$-14+13i$

Work Step by Step

$\bf{\text{Solution Outline:}}$ To simplify the given expression, $ 15i-(3+2i)-11 ,$ remove the grouping symbols and then combine the real parts and the imaginary parts. $\bf{\text{Solution Details:}}$ Removing the grouping symbols, the expression above is equivalent to \begin{array}{l}\require{cancel} 15i-3-2i-11 .\end{array} Combining the real parts and the imaginary parts results to \begin{array}{l}\require{cancel} (-3-11)+(15i-2i) \\\\= -14+13i .\end{array}
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