Mathematical and Physical Journal
for High Schools
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Problem C. 1312. (October 2015)

C. 1312. Suppose that \(\displaystyle xy+x+y=44\) and \(\displaystyle x^2y+xy^2=448\). Then evaluate \(\displaystyle x^2+y^2\).

M&IQ

(5 pont)

Deadline expired on November 10, 2015.


Statistics:

272 students sent a solution.
5 points:179 students.
4 points:33 students.
3 points:20 students.
2 points:4 students.
1 point:17 students.
0 point:13 students.
Unfair, not evaluated:6 solutions.

Problems in Mathematics of KöMaL, October 2015