×⁴ = 625;
(×-8)⁴ = 16;
2×⁴ + 36 = 0;
5×⁸ - 10 = 0;
⁴√× - 2 = 0;
³√× - 2 = 0;
⁶√× + 3 = 0;
⁴√2× - 2 = 0;
⁴√2×-2=0;
⁴√3×+1 = 2;
2×¹² - 5×⁶ + 3 =0;
×⁸ - 5×⁴ - 36 = 0;
√× - 8⁴√× =0;
4∛× - 20⁶√× + 25 = 0;