A rectangle has a length of (2x+3)(2x + 3)(2x+3) cm and a width of (x+5)(x + 5)(x+5) cm.

Find an expression for the perimeter of the rectangle.
Given the rectangle has a perimeter of 43 cm find the value of xxx.
Practise OCR GCSE Maths Forming and Solving Equations with exam-style questions for Foundation and Higher tier. 78 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.