zbiorem-rozwiazan-nierownosci-displaystyle-frac2-x3-frac2x-12andltx-jest-przedzial

A)

$\displaystyle \left(-\infty, \frac{1}{2} \right)$ \displaystyle \left(-\infty, \frac{1}{2} \right)

B)

$\displaystyle \left(-\infty, \frac{1}{14} \right)$ \displaystyle \left(-\infty, \frac{1}{14} \right)

C)

$\displaystyle \left( \frac{1}{14},+\infty \right)$ \displaystyle \left( \frac{1}{14},+\infty \right)

D)

$\displaystyle \left( \frac{1}{2},+\infty \right)$ \displaystyle \left( \frac{1}{2},+\infty \right)