Factorise a quadratic and solve for x — a real question, generated fresh right now, exactly as it works in the app. Get one wrong and try again with a different one, for free, no signup needed.
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Format like x=3 or x=-5
A quadratic in the form x² + bx + c = 0 can often be factorised into two brackets: (x + p)(x + q) = 0, where p and q are two numbers that multiply to give c and add to give b.
Once factorised, each bracket can independently equal zero — so if (x + p)(x + q) = 0, then either x = −p or x = −q. Those are your two solutions.
This app also covers the quadratic formula and completing the square, for quadratics that don't factorise neatly — both included in the full topic, along with 91 other GCSE question types.
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