Intermediate June 2017 Unit 2 Q9
9. Look at the diagram below.
The expression in each circle is found by adding the expressions in the rectangles on either side of the circle.
Complete the diagram by writing expressions in the blank circles and the blank rectangle.
You must simplify your expressions. [3]

| Scheme | Marks | Comments |
|---|---|---|
![]() | B3 | B1 for 5x + 3y B1 for 5x + 2y Bottom circle F.T. ‘their 5x + 2y’ + 4x – y for B1. Penalise ‘correct’ but unsimplified expressions −1 once only. |
