help mary: proszę o pomoc 4span style="font-family:times; margin-left:1px; margin-right:1px">¹₄ * (1/8) span style="font-family:times; margin-left:1px; margin-right:1px">⁻¹₂ : √2span style="font-family:times; margin-left:1px; margin-right:1px">¹₂