Higher June 2023 Paper 1 Q8

AQACurrent spec2 marksExpanding Brackets

8 Expand and simplify fully \(\quad 5(3x + 4) - 2(x - 1)\) [2 marks]

Mark scheme

Answer	Mark	Comments
\(13x + 22\)	B2	B1 \(15x + 20\) or \(-2x + 2\) or \(13x + a\) or \(bx + 22\), where \(a\) and \(b\) can be any numbers

Do not ignore further working for B2
eg \(13x + 22 = 35x\)
eg \(13x + 22,\ x = \dfrac{22}{13}\)

B1
B1