College Algebra (11th Edition)

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

Chapter 1 - Review Exercises: 19

Answer

$13-3i$

Work Step by Step

$\bf{\text{Solution Outline:}}$ To simplify the given expression, $ (6-i)+(7-2i) ,$ 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} 6-i+7-2i .\end{array} Combining the real parts and the imaginary parts results to \begin{array}{l}\require{cancel} (6+7)+(-i-2i) \\\\= 13-3i .\end{array}
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