Решить уравнение 7x+x^2=0 6x^2+x-2=0
Решите задачу:
7x + x^2 = 0 x *(7 + x) = 0 x = 0 ; x = - 7; 6x^2 + x - 2 = 0 D = 1 + 4*12 = 49 x1 = ( - 1 + 7)/12 = 6/12 = 1/2; x2 = ( - 1 - 7)/12 = - 8/12 = - 2/3