Given that 16−n=3216^{-n} = 3216−n=32, find the value of nnn.
Practise Edexcel GCSE Maths Fractional and Negative Indices with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.