Answer
$21\frac{1}{2}$
Work Step by Step
Substitute $-2$ to $x$ in the given expression to obtain:
$3x^2-5x+\frac{1}{x}
\\= 3(-2)^2 -5(-2) + \frac{1}{-2}
\\=3(4) +10 - \frac{1}{2}
\\=12+10-\frac{1}{2}
\\=22-\frac{1}{2}
\\=21\frac{1}{2}$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 3 - Section 3.1 - Functions - 3.1 Assess Your Understanding - Page 210: 2
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