Question

me ajude ???????????
$4 {x}^{2} = 49$
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Answer 1

$\LARGE\tt{}4 {x}^{2} = 49 \\ \LARGE\tt{}4 {x}^{2} \div 4 = 49 \div 4 \\ \LARGE\tt{} {x}^{2} = 49 \div 4 \\ \\ \LARGE\tt{} {x}^{2} = \frac{49}{4} \\ \\ \LARGE\tt{}x = \pm \sqrt{ \dfrac{49}{4} } \\ \\ \LARGE\tt{}x = \pm \dfrac{7}{2} \\ \\ \LARGE\tt{}x = - \dfrac{7}{2} \\ \\ \LARGE\tt{}x = \dfrac{7}{2} \\ \\ \\ \LARGE\tt{} x_{1} = \{ - \dfrac{7}{2} \} \\ \\ \LARGE\tt{} x_{2} = \{ \dfrac{7}{2} \}$

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