What is the complex conjugate of -2 +5i ? Precalculus Complex Zeros Complex Conjugate Zeros 1 Answer Trevor Ryan. Oct 28, 2015 -2-5i Explanation: For any complex number z in CC, written in rectangular form as x=x+iy, then the complex conjugate is given by bar z=x-iy. Note that z barz = x^2+y^2 in RR Answer link Related questions What is a complex conjugate? How do I find a complex conjugate? What is the conjugate zeros theorem? How do I use the conjugate zeros theorem? What is the conjugate pair theorem? How do I find the complex conjugate of 10+6i? How do I find the complex conjugate of 14+12i? What is the complex conjugate for the number 7-3i? What is the complex conjugate of 3i+4? What is the complex conjugate of a-bi? See all questions in Complex Conjugate Zeros Impact of this question 7774 views around the world You can reuse this answer Creative Commons License