Question

2×√x²-11=8

(el -11 tambien esta dentro de la raiz)
ayudaa​

Answer 1

Respuesta:

$2 \times \sqrt{ {x}^{2} - 11 } = 8 \\ \sqrt{ {x}^{2} - 11 } = \frac{8}{2} \\ \sqrt{ {x}^{2} - 11 } = 4 \\ {x}^{2} - 11 = {4}^{2} \\ {x}^{2} = 16 + 11 \\ x = \sqrt{27}$