How do you simplify #-1-8i-4-i#? Precalculus Complex Numbers in Trigonometric Form Complex Number Plane 1 Answer Alan N. Aug 28, 2016 #-5-9i# Explanation: #z = -1-8i-4-i# Sum the Real and Imaginary parts #-># #z= (-1-4) + (-8-1)i# #=-5-9i# Answer link Related questions What is the complex number plane? Which vectors define the complex number plane? What is the modulus of a complex number? How do I graph the complex number #3+4i# in the complex plane? How do I graph the complex number #2-3i# in the complex plane? How do I graph the complex number #-4+2i# in the complex plane? How do I graph the number 3 in the complex number plane? How do I graph the number #4i# in the complex number plane? How do I use graphing in the complex plane to add #2+4i# and #5+3i#? How do I use graphing in the complex plane to subtract #3+4i# from #-2+2i#? See all questions in Complex Number Plane Impact of this question 1585 views around the world You can reuse this answer Creative Commons License