Question

find the conjugates of (2-5i) (6-5i) ​

Answer 1

$z = (2 - 5i).(6 - 5i) \\ = 12 - 10i - 30i + 25 {i}^{2} \\ = 12 - 40i - 25 \\ = - 13 - 40i$

Now, the conjugate of z

${z}^{ - } = - 13 + 40i$