Question

$x^{2} -1=8$
$\sqrt{x} -3=4$
$x^{4}/8+1=33$

Answer 1

Respuesta:

1. x=3
2. x=49
3. x=3

Explicación paso a paso:

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

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

$\frac{x^{4} }{8} +1=33\\\frac{x^{4} }{8}=33-1\\\frac{x^{4} }{8}=32\\x^{4}=32*8\\x^{4}=256\\x=\sqrt[4]{256} \\\\x= 4$