Question:medium

If $1+2i$ is a root of the equation $x^4 - 3x^3 + 8x^2 - 7x + 5 = 0$, then sum of the squares of the other roots is

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For polynomials with real coefficients, complex roots occur in conjugate pairs. Use this to form quadratic factors easily.

Updated On: Mar 30, 2026

0
2+i
-4-4i
8/3

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The Correct Option is C

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