Question

поможіть бумласочка

Answer 1

Ответ:

$\displaystyle1,25$

Объяснение:

$\displaystylex-\frac{1}{2x}=-0,5\ \ \ \ |()^2\\\\x^2-2\cdot x\cdot \frac{1}{2x}+\frac{1}{4x^2}=0,25\\\\x^2-1+\frac{1}{4x^2}=0,25\\\\x^2+\frac{1}{4x^2}=0,25+1\\\\x^2+\frac{1}{4x^2}=1,25$