Answer
Fill the blanks with
$2x+1,\quad x^{2}-14x+49$
Work Step by Step
$(LHS)^{2}=(\sqrt{2x+1})^{2}=2x+1$
$(RHS)^{2}=(x-7)^{2}=x^{2}-2(x)(7)+7^{2}$
$=x^{2}-14x+49$
Fill the blanks with
$2x+1,\quad x^{2}-14x+49$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.7 - Equations - Concept and Vocabulary Check - Page 105: 29
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