P=mn+12kn2\displaystyle P = mn + \frac{1}{2}kn^2P=mn+21kn2
m=−6m = -6m=−6 k=8k = 8k=8 n=2n = 2n=2
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.