Mathematics 9709/12 — May/June 2021

Cambridge AS Level · Pure Mathematics 1 · worked solutions for every part, with the mark scheme

questions

marks

110

minutes

Topics Quadratics · Functions · Differentiation · Series · Coordinate Geometry · Integration · +2 more

Q1QuadraticsFree sample

(a)

Express $16x^2 - 24x + 10$ in the form $(4x + a)^2 + b$ .

(b)

It is given that the equation $16x^2 - 24x + 10 = k$ , where $k$ is a constant, has exactly one root.

Find the value of this root.

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