3. \( x^{3}+a x^{2}+b x+2=0 \) tənliyinin \( x_{1}, x_{2} \) və \( x_{3} \) köklərinin üçü də mənfi həqiqi ədədləı \( 3 x_{1}+9 x_{2}+4 x_{3}=-18 \) olduğuna görə, \( x_{1}^{2}+x_{2}^{2}-x_{3}^{2} \) ifadəsi aşağıdakılardan hansına bərabərdir A) \( \frac{79}{36} \) B) \( \sqrt{13}+4 \) C) \( 13+\sqrt{13} \) D) \( \frac{7}{4} \) E) \( \frac{9}{36}+\sqrt{13} \)

4. Halla la ecuación de una recta paralela a la recta dada y que pase por el punto que se indica. \( \begin{array}{ll}\text { a. } y=7 x-4 & M(1,2) \\ \text { b. } 3 x+6 y-2=0 & N(3,0) \\ \text { c. } y=-\frac{3}{4} x-16 & P\left(\frac{1}{3}, \frac{2}{5}\right) \\ \text { d. } 4 x+y-2=0 & Q\left(-\frac{1}{3},-\frac{7}{2}\right)\end{array} \)

Write a polynomial \( f(x) \) that satisfies the given conditions. Polynomial of lowest degree with zeros of \( -\frac{5}{3} \) (multiplicity 2\( ) \) and \( \frac{1}{4} \) (multiplicity 1 ) and with \( f(0)=25 \). \( f(x)= \)

1. [-/2 Points] DETAILS MY NOTES LARPCALC7 2.3.006. Use long division to divide. \( \left(5 x^{2}-21 x-20\right) \div(x-5) \)

Use long division to divide. \[ \left(x^{3}-3 x^{2}-18 x+6\right) \div(x-2) \]

Infection Handout The questions on the handout correspond to Frontline's Hunting the Nightmare Bacteria. http://www.pbs.org/wgbh/frontline/film/hunting-the-nightmare-bacteria/ 1. Why are Gram-negatives are so stubbornly nasty? 2. What super bug was responsible for Ricci's condition? What was his outcome 2 years post treatment? 3. How was NDM-1 found out in the environment?