i am trying to do exponent problems and need to know how to put exponents in keyboard
Keyboards normally don't do superscripts. If you want to write out an exponent here, just use a caret mark (^). For example, three squared is 3^2.
Use the carat symbol^. It's on the 6 key top row. e.g to write x squaredx^2 x cubed.x^3 And so on.