A rectangular photograph has a length of (4x+3)(4x + 3)(4x+3) cm and a width of (x−1)(x - 1)(x−1) cm.
Find an expression for the perimeter of the photograph.
Given the photograph has a perimeter of 49 cm, find the value of xxx.
71 exam-style questions on Edexcel GCSE Maths Forming and Solving Equations. Each one has a worked solution and a mark scheme showing where the marks go.