Решите задачу:
Y*(Y+4) = (Y+2)*(2Y-1) Y^2 + 4Y = 2Y^2 + 3Y - 2 Y^2 - Y - 2 = 0 D = 1 -4*1*(-2) = 9 ( V D = 3) Y1 = ( 1 + 3 ) \ 2 = 2 Y2 =( - 1 )