CAPE Pure Mathematics Unit 1 · 2008 (Rest of Region) · Paper 1 · Question Q11

The expression 2 - 4x + 3x^2 can be written as

1. (A)3\left(x - \frac{2}{3}\right)^2 - \frac{3}{2}
2. (B)3\left(x - \frac{2}{3}\right)^2 - \frac{2}{3}
3. (C)3\left(x - \frac{3}{2}\right)^2 + \frac{2}{3}
4. (D)3\left(x - \frac{2}{3}\right)^2 + \frac{2}{3}