Номер 4***************
X + 4 = 5 / ( 2X - 1 ) 5 = ( X + 4)*( 2X - 1 ) 5 = 2X^2 - X + 8X - 4 2X^2 + 7X - 9 = 0 D = 49 + 72 = 121 √ D = 11 X1 = ( - 7 + 11 ) : 4 = 1 X2 = ( - 7 - 11 ) : 4 = - 4,5
Решите задачу: