Question

${x}^{2} - 49 = 0$
ajuda eu aí ??????​

Answer 1

$\LARGE\tt{} {x}^{2} - 49 = 0 \\ \LARGE\tt{} {x}^{2} = 49 \\ \LARGE\tt{}x = \pm \sqrt{49} \\ \\ \LARGE\tt{}x = \pm \: 7 \\ \\ \LARGE\tt{}s = \{ - 7,7 \}$

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