Question 139680
simplify 
{{{((3+6i))/((5+i))}}}
Multiply by conjugate of (5+i), namely (5-i)
{{{((3+6i))/((5+i))}}} * {{{((5-i))/((5-i))}}} = {{{((15 - 3i + 30i - 6i^2))/((25 - i^2))}}} =
:
{{{((15 + 27i - 6(-1)))/((25 - (-1)))}}} = {{{((15 + 27i + 6))/((25 + 1))}}} = {{{((21 + 27i))/(26)}}}
:
How about this; could you follow what we did here? Any questions?