Question

z2+z2^2+z3^2=z,z2+z1z3+z2z3
​

Answer 1

2 + z x 2² + z x 3² = z

2 + z x 4 + z x 9 = z

2 + 4z + 9z = z

2+ 13z = z

13z - z = -2

12z = -2

z = -⅙