College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 1, Equations and Graphs - Section 1.5 - Complex Numbers - 1.5 Exercises: 57

Answer

$(3+\sqrt{5})+(3-\sqrt{5})i$

Work Step by Step

$(3-\sqrt{-5})(1+\sqrt{-1})=(3-\sqrt{5}i)(1+i)=3+3i-\sqrt{5}i-\sqrt{5}i^2=(3+\sqrt{5})+(3-\sqrt{5})i$
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