Question

не решая уравнения 3х²- 5х - 2=0, найдите сумму и произведение его корней

Answer 1

3x^2 - 5x - 2 = 0
x1 = 2
x2 = - 2/6
x1 + x2 = 2 + ( - 2/6) = 2 - 2/6 = 10/6 = 5/3 = 1целая 2/3
x1 * x2 = - 2/6 * 2 = - 4/6 = - 2/3