815=3x81^5 = 3^x815=3x
Find the value of xxx.
Practise OCR GCSE Maths Indices with exam-style questions for Foundation and Higher tier. 100 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.