Simplify 4a2+a2+2a24a^2 + a^2 + 2a^24a2+a2+2a2
Simplify 3rs−7rs+5rs3rs - 7rs + 5rs3rs−7rs+5rs
Simplify 6a+3−9a+2a−86a + 3 - 9a + 2a - 86a+3−9a+2a−8. Give your answer in the form pa+qpa+qpa+q, where p p\,p and q q\,q are integers.
260 exam-style questions on OCR GCSE Maths Simplifying Algebra. Each one has a worked solution and a mark scheme showing where the marks go.