Step 1:
You find the complex conjugate simply by changing the sign of the imaginary part of the complex number. To find the complex conjugate of 4+7i we change the sign of the imaginary part. Thus the complex conjugate of 4+7i is 4 - 7i.
Step 2:
Conjugate of −5−2i = -5 + 2i
Final answer
-5 + 2i