How do you simplify (3-5i)+(3+5i)(3−5i)+(3+5i)? Precalculus Complex Numbers in Trigonometric Form Complex Number Plane 1 Answer Andre R. Oct 24, 2016 =6=6 Explanation: expand brackets, (3-5i)+(3+5i)(3−5i)+(3+5i) =3-5i+3+5i=3−5i+3+5i =6=6 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+4i3+4i in the complex plane? How do I graph the complex number 2-3i2−3i in the complex plane? How do I graph the complex number -4+2i−4+2i in the complex plane? How do I graph the number 3 in the complex number plane? How do I graph the number 4i4i in the complex number plane? How do I use graphing in the complex plane to add 2+4i2+4i and 5+3i5+3i? How do I use graphing in the complex plane to subtract 3+4i3+4i from -2+2i−2+2i? See all questions in Complex Number Plane Impact of this question 2326 views around the world You can reuse this answer Creative Commons License