Simplify the expression (3+2i)+(1−5i)(3 + 2i) + (1 - 5i)(3+2i)+(1−5i), where iii is the imaginary unit defined as i=−1i = \sqrt{-1}i=−1.
4−3i4 - 3i4−3i
2+7i2 + 7i2+7i
4+3i4 + 3i4+3i
4−7i4 - 7i4−7i