SPER CA SE INTELEGE, VA ROG, PANA LA 8PM!

Răspuns:
M1={21/7, 0}
M2={-1, -9, 21/7, 0}
M3={-1, 2,(3), 1/7, -9, 21/7, 0, -1,5}
M4={-1, -9}
M5={2,(3), 1/7, -1,5}
M6={-1, 2,(3), 1/7, -9, -1,5}