For #yi^2 - x i# was if the imaginary and what is the real part? Precalculus Complex Numbers in Trigonometric Form Complex Number Plane 1 Answer Sonnhard Jun 21, 2018 We get #yi^2-x*i=-y-x*i#, #-y# is the real part and #-x# the imaginary part# Explanation: Note that #yi^2-x i=-y-x i# 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 1334 views around the world You can reuse this answer Creative Commons License