Question

Buenas tardes, me pueden ayudar? :)

Answer 1

Explicación paso a paso:

$3x^{2} - 43 = 200 \\ 3x^{2} = 200 + 43 \\ 3x^{2} = 243 \\ x^{2} = \frac{243}{3} \\ x ^{2} = 81 \\ x = \sqrt{81} \\ x = 9 \\ \\ x^{2} - 9 = 16 \\ x^{2} = 16 + 9 \\ x^{2} = 25 \\x = \sqrt{25} \\ x = 5 \\ </p><p> \\ x^{2} = 841 \\ x = \sqrt{841} \\ x = 29$