Question If using the method of completing the square to solve the quadratic equation \( x^{2}+3 x-17=0 \), which number would have to be added to "complete the square"? Answer Attempt 2 out of 2

4) Find the sum of -2 and its complex conjugate. Write your answer in the form \( \mathrm{a}+\mathrm{bi} \). \( \square \)

Resuelva el sistema de ecuaciones lineales seleccionado utilizando el método de eliminación de GaussJordán. C. \( \left\{\begin{array}{c}-x-y-4 z=8 \\ 3 x+4 y+2 z=10 \\ 23 x+27 y+22 z=12\end{array}\right. \)

1) Find the sum of \( -10-4 i \) and its complex conjugate. Write your answer in the form a + bi. \( i \)

Express \( \frac{x^{4}+2 x^{2}-x+1}{x^{3}-3 x+2} \) in partial fractions.

1) Find the sum of \( -2-6 i \) and its complex conjugate. Write your answer in the form a + bi. A