Mathematics 0580 · IGCSE · Algebraic fractions

Algebraic fractions — practice question

(a)[2]

Factorise $x^2 - 3x - 10$.

(b(i))[3]

Show that $\frac{x + 2}{x + 1} + \frac{3}{x} = 3$ can be rewritten as $2x^2 - 2x - 3 = 0$.

(b(ii))[4]

Solve $2x^2 - 2x - 3 = 0$. Give your answers correct to 3 decimal places. Show all your working.

(c)[4]

Simplify $\frac{2x + 3}{x + 2} - \frac{x}{x + 1}$.

Worked solution & mark scheme

This 13-mark question has a full step-by-step worked solution and mark scheme. One marking point: $(x-5)(x+2)$

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