#### Answer

7

#### Work Step by Step

We factor the equation and then set the factors equal to zero to find:
$$ x^2 -14x+49 = 0 \\ (x-7)^2 =0 \\ x=7$$

Published by
Cengage Learning

ISBN 10:
9781337271172

ISBN 13:
978-1-33727-117-2

7

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