Question

1/3х²+27=0 решите уравнение

Answer 1

ОДЗ:
$3x^2 neq 0 \ x neq 0$
$frac{1}{3x^2} +27 = 0 \ frac{1}{3x^2} = -27 \ -81x^2=0 \ x= 0 \ x in varnothing$