4MA0 Higher January 2012 Paper 3 Q5

5

(a) Factorise \(5a - 3a^2\) (2)

(b) Expand

(i) \(2(4 - 3w)\)

(ii) \(y^2(y + 10)\)

(3)

(c) \[W = \dfrac{5.6a}{b^2}\] \(a = 1.28\) \(b = 0.8\)
Work out the value of \(W\). (2)

Scheme	Marks
\(a(5 - 3a)\)	B2
	(2)