Question

5x^2/2=2/5 como faz gnt??

Answer 1

$\frac{5x^2}{2} = \frac{2}{5} ~~~~~~multiplica ~~~~ cruzado$
$25x^2 = 4$
$x^2 = \frac{4}{25}$
$x= \sqrt\x \frac{4}{25} }$
$x = \frac{2}{5}$

$\large\boxed{\boxed{Portanto,~o~~ valor~~ de~~ x = \frac{2}{5}} }$