Higher June 2018 Paper 3 Q2

EdexcelCurrent spec2 marksExpanding Brackets

2 Expand and simplify \(5(p + 3) - 2(1 - 2p)\) (2)

Mark scheme

Answer	Mark	Mark scheme
\(9p + 13\)	M1	for method to expand one bracket, eg \(5 \times p + 5 \times 3\ (= 5p + 15)\) or \(2 \times 1 - 2 \times 2p\ (= 2 - 4p)\) or \(-2 \times 1 - 2 \times -2p\ (= -2 + 4p)\)
\(9p + 13\)	A1	cao

If an attempt is made to multiply by \(-2\) in the second brackets then it must be done consistently.