NRICH: Mega Quadratic Equations

NRICH: Mega Quadratic Equations

What do you get when you raise a quadratic to the power of a quadratic?

There are six possible solutions to each of the following equations. Can you find them all?

1. (n25n+5)(n211n+30)=1

2. (n27n+11)(n213n+42)=1

Can you find some more Mega Quadratic Equations like these?

With thanks to Don Steward, whose ideas formed the basis of this problem.

Age 16 to 18


NRICH (University of Cambridge)
Math Topics
Algebra & Pre-Algebra, Equations
High School, Educator
9th Grade, 10th Grade, 11th Grade, 12th Grade

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