Let z1 =3+4i and z2 = -1+2i. Then abs(z1...

Let `z_1 =3+4i` and `z_2 = -1+2i`. Then `abs(z_1+z_2)^2-2(abs(z_1)^2+abs(z_2)^2)` is equal to

A

`abs(z_1-z_2)^2`

B

`-abs(z_1-z_2)^2`

C

`abs(z_1)^2+abs(z_2)^2`

D

`abs(z_1)^2-abs(z_2)^2`

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