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Completing the Square

1. Equations & Inequalities / Completing the Square / Problema 3

Problema 3

By completing the square, solve the following equation.
x² - 16x + 63 = 0

A

x = 8, - 8

B

x = 2√2, -2√2

C

x = - 7, - 9

D

x = 7, 9