How do you find all the real and complex roots of x^4-12x^2+27=0x4−12x2+27=0? Precalculus Complex Zeros Complex Conjugate Zeros 1 Answer Gió Jan 9, 2016 I found four roots: Explanation: Try this: 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+6i10+6i? How do I find the complex conjugate of 14+12i14+12i? What is the complex conjugate for the number 7-3i7−3i? What is the complex conjugate of 3i+43i+4? What is the complex conjugate of a-bia−bi? See all questions in Complex Conjugate Zeros Impact of this question 2186 views around the world You can reuse this answer Creative Commons License