Simplify 4-7i/2+5i

Answer 1

4+3i/2

Answer 2

I am sure you meant:

(4-7i)/(2+5i)
= (4-7i)/(2+5i)*(2-5i)/(2-5i)
= (8 -20i - 14i + 35i^2 )/(4 - 5)

= 8 - 34i - 35)/-1
= 27 + 34i