p=a2−b22c\displaystyle p = \frac{a^2 - b^2}{2c}p=2ca2−b2
a=9a = 9a=9 b=1b = 1b=1 c=8c = 8c=8
Work out the value of ppp.
Practise OCR GCSE Maths Substitution 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.