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OpenStudy (anonymous):
Find the conjugate of the complex number 8-12i (explain how to get answer pls) Rewite x^2+9 as a product using complex numbers and the polynomial identity
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OpenStudy (seascorpion1):
to find the the conjugate of a complex number you change the sign of the imaginary part of the complex number so the conjugate of 8-12i is 8+12i. The roots of x^2+9=0 are 3i and -3i so its factorization is (x+3i)(x-3i)
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