Question

решите уравнение
5/х=2x

Answer 1

ОДЗ: $displaystyle tt xne0$

$displaystyle tt frac{5}{x}=2x:::::bigg|cdot x\\ displaystyle tt 5=2x^2\\ displaystyle tt 2x^2=5\\ displaystyle tt x^2=frac{5}{2}\\ displaystyle tt x^2=2,5\\ displaystyle tt bold{x_1=sqrt{2,5}}\\displaystyle tt bold{x_2=-sqrt{2,5}}$