Current
Quadratic Queries
Quadratic equations and expressions crop up in all sorts of contexts. Each of the problems in this feature includes a quadratic element; we hope you find them intriguing...
Difference of Two Squares Stage: 4 Challenge Level: 
What is special about the difference between squares of numbers adjacent to multiples of three?
Pythagoras Perimeters Stage: 4 Challenge Level:
If you know the perimeter of a right angled triangle, what can you say about the area?
Mega Quadratic Equations Stage: 5 Challenge Level:
What do you get when you raise a quadratic to the power of a quadratic?
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NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.