Answer:
The product of each pair of complex conjugates is:
(3 + 8i)(3 – 8i) = (9 - 8^2) + i(9 + 8^2) = (-81) + i(99) = (-81) + i(11) = (-81) + 11i
And
(4 + 5i)(4 – 5i) = (16 - 25) + i(16 + 25) = (-9) + i(41) = (-9) + 41i
So, the products are:
(-81) + 11i
and
(-9) + 41i