Question 552527
(4+2i) (1-5i)
= 4(1-5i) + 2i*(1-5i)
= {{{4-20i + 2i-10i^2}}}
{{{i^2 = -1}}}
= 4 - 18i -10*(-1)
= 4 - 18i + 10
= 14 - 18i