уравнениеавсзакономерностьХ1Х1 Х2Х2 x2 - 5x + 6 = 0 1-562+3=5 2*3=6 23 x2 - 2x - 15 = 0 1-2-15-3+5=2 -3*5=-15 5-3 x2 + 6x +8 = 0 168-4-2=-6 -4*(-2)=8 -4-2 x2 - 3x - 18 = 0 1-3-186-3=3 6*(-3)=-18 6 -3 x2 + 8x +7 = 0 187-7-1=-8 -7*(-1)=7 -7 x2 + 4x - 5