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Solve the following equations by extracting the roots.
1. x²-16=0

${x}^{2} - 16 = 0 \\ {x}^{2} = 16 \\ \sqrt{} {x}^{2} = \sqrt{16} \\ x = 4$

${x}^{2} - 16 = 0 \\ {4}^{2} - 16 = 0 \\ 16 - 16 =0 \\ 0 = 0$

${x}^{2} - 16 = 0 \\ {4}^{2} - 16 = 0 \\ {4}^{2} = 16 \\ 16 = 16$

1 SOLUTION

2 CHECKINGS

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