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Quadratics — IB Maths AA HL Practice

Quadratics underpin half of the Functions topic. Practise factorising, the discriminant and completing the square, then the HL favourites — tangent conditions and sums of roots — with the method re-explained on every miss.

The idea

A quadratic factorises as $(x-p)(x-q)$; the roots are the values that make each bracket zero.
💡 Find two numbers that multiply to the constant and add to the (negated) middle coefficient.

What you'll master

Sample questions

Every attempt generates new numbers — the practice below never runs out.

Practise it now

Frequently asked questions

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