Next I introduce you to negative indices which is an extension of the division rule.

shouldnt you use the identity sign instead of the equals sign?

Strictly, yes.

also, what would be the best way to answer an exam question, leaving the answer as it is with a negative index or changing it to a fraction (1/x^n)

I believe you should try and simplify however some boards may accept the un-simplified version. Check the mark scheme.

aaqibJanuary 3, 2017 at 6:39 pmshouldnt you use the identity sign instead of the equals sign?

Stuart the ExamSolutions GuyJanuary 3, 2017 at 7:35 pmStrictly, yes.

aaqibJanuary 3, 2017 at 6:44 pmalso, what would be the best way to answer an exam question, leaving the answer as it is with a negative index or changing it to a fraction (1/x^n)

Stuart the ExamSolutions GuyJanuary 3, 2017 at 7:36 pmI believe you should try and simplify however some boards may accept the un-simplified version. Check the mark scheme.