Mathematics 9709 · AS & A Level · Quadratics

Quadratics — practice question

(i)[2]

Write $x^2 + 6x + 2$ in the form $(x + a)^2 + b$, with $a$ and $b$ as constants.

(ii)[2]

Hence, or by another method, determine the values of $x$ for which $x^2 + 6x + 2 > 9$.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: Correct form $(x+3)^2-7$

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