Question

49x в 4 степени - 64=0

Answer 1

$49x^4-64=0$
$49x^4=64$
$x^4= \frac{64}{49}$
$x= \frac{2 \sqrt{14} }{7}$
$x=- \frac{2 \sqrt{14} }{7}$
$x_{1}=- \frac{2 \sqrt{14} }{7}$
$x_{2}= \frac{2 \sqrt{14} }{7}$