Mathematics 0580 · IGCSE · Equations

Equations — practice question

The equation $ax^2 + a = 150$ has $x = 7$ as one root.
(a)[2]

Find the value of $a$ from the equation.

(b)[1]

Find the other solution to the equation.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “An equivalent form is $x^2+7^2=150$.” …

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