Answer
$-9+i$
Work Step by Step
$(-2+9i)-(7+8i)\qquad$ ...remove parentheses.
$=-2+9i-7-8i\qquad$ ...group like terms.
$=-2-7+9i-8i\qquad$ ...simplify.
$=-9+i$
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 4 Quadratic Functions and Factoring - 4.7 Complete the Square - 4.7 Exercises - Quiz for Lessons 4.5-4.7 - Page 291: 8
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