Решите Неравенство x²-3x+2<0
X^2 - 3x + 2 = 0 D = 9 - 4*2 = 1 x1 = ( 3 + 1)/2 = 4/2 = 2 x2 = ( 3 - 1)/2 = 2/2 = 1 + - + ----------- 1 -------------- 2 ----------->x x ∈ ( 1; 2)