Finding the eigenvalues of a 2 by 2 matrix

Enter the entries of the matrix

The entry 11 is a1+a2 i, the entry 12 is b1+b2 i, the entry 21 is c1+c2 i and the entry 22 is d1+d2 i

Your matrix has coefficients (1+(0) i), (1+(0) i) x, (1+(0) i) and (1+(0) i)

The eigenvalues are:

2

and

0