Answer
$$9-i$$
Work Step by Step
We know that $i=\sqrt{-1}$. We also know that standard form is $a\pm bi$, where a and b are real numbers. Thus, simplifying the equation, we find:
$$\left(4+5\right)+\left(-2+1\right)i \\ 9-i$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 6 Rational Exponents and Radical Functions - Cumulative Review Chapters 1-6 - Page 474: 25
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