The teacher will be very surprised to see your correct solution 😉
____ 3 I*\/ 26 x_1 = - - -------- 7 7
____ 3 I*\/ 26 x_2 = - + -------- 7 7
sum
____ ____ 3 I*\/ 26 3 I*\/ 26 - - -------- + - + -------- 7 7 7 7
=
6/7
product
____ ____ 3 I*\/ 26 3 I*\/ 26 - - -------- * - + -------- 7 7 7 7
=
5/7
x1 = 0.428571428571429 - 0.728431359084684*i
x2 = 0.428571428571429 + 0.728431359084684*i
x2 = 0.428571428571429 + 0.728431359084684*i