Question
Given that $z=5+2 i$ is a zero of the polynomial $f(x)=x^{3}-7 x^{2}-x+87,$ find the other zeros.
Step 1
Step 1: Since the coefficients of the polynomial are all real, the complex conjugate of $z$, which is $\overline{z} = 5 - 2i$, must also be a zero of the polynomial. Show more…
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