Răspunsuri

2014-05-15T19:13:19+03:00
2a2-a+2 ....... .........................................
2014-05-15T19:15:02+03:00

5a²+3a-7+2a-3a²+5
2a²+3a-7+2a+5
2a²+5a-2
1 5 1