Question

a)
${ \times }^{2} - 1 = 8$
b)
$\sqrt{ \times } - 3 = 4$
si saben ayudenme xfaa es para hoy​

Answer 1

Respuesta:

${x}^{2} - 1 = 8 \\ {x}^{2} = 8 + 1 \\ {x}^{2} = 9 \\ x = \sqrt[2]{9} \\ x = 3$

$\sqrt{x} - 3 = 4 \\ \sqrt{x} = 4 + 3 \\ \sqrt{x} = 7 \\ x = {7}^{2} \\ x = 49$