4400 Higher June 2006 Paper 4 Q2

(a) Factorise \(\quad 3x^2 - 2x\) (1)

(b) Expand \(\quad y^3(y - 4)\) (2)

(c) Here is a formula used in physics.
\(v = u + at\)

Find the value of \(t\) when \(v = 30\), \(u = 5\) and \(a = 10\)

(2)