X power x power 4
- X power x power 4 64
- X power 4 x power 4
- X power 2 x power 4
- X power 3 x power 4
- X to the power of 1/4
- X power 4 plus x power 4
- X power 4 x power 2 1
- X power 4 minus x power 2
- X power 4 minus x minus z power 4
- 3 power x 4 power x 1
- 4 power x 4 power x 1 24
- Factorise x power 4 1 by x power 4 1
- X ki power 4 x ki power 4
- X power 4 x square y square y power 4
- X ki power 4 1 x ki power 4