h=2r2−5h = 2r^2 - 5h=2r2−5
r=−6r = -6r=−6
Work out the value of hhh.
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.