Решите уравнение : (10 + x)(x +13)=-2
X^2 + 23x + 130 = - 2 x^2 + 23x + 132 = 0 D = 1 > 0 x1 = ( - 23 + 1)/2 = - 11 x2 = ( - 23 - 1)/2 = - 12