Roots without solving

The roots of $x^{2} - 5 x + 6 = 0$ are $r$ and $s$ . Find $r^{2} + s^{2}$ — without finding $r$ and $s$ .

~7 minWritten answer · compare with the solutionVieta's formulasSymmetric functions

Stuck? A gentle nudge

Something off?

Workspace

Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.