neo_kalel wrote:2 ^5/2 - 2^3/2, if i typped that write should be 2 to the 5/2 power minus 2 to the 3/2 power.
To learn how to format math by just typing, try here
In LaTeX form, I think you mean the expression to be as follows:. . . . .
I suspect that the instructions are to "simplify" or to "express as a single radical term". If so, then you can learn the basics of radicals here
and about fractional exponents here
Once you've studied the above, then the below should seem sensible:. . . . .. . . . .
...and so forth.