Mathematics 9709 · AS & A Level · Quadratics

Quadratics — practice question

(main)[4]

Find the set of values of $k$ for which the equation $2x^2 + 3kx + k = 0$ has two distinct real roots.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Use discriminant $b^2-4ac$ with $(3k)^2-4(2)k$.” …

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