13. Хаалт нээж төсөөтэй гишүүд эмхэтгэ. \( \begin{array}{lc}\text { a. }-4 a+9(a-4)+20 & 2(2 y+8)-9(y+5) \\ \text { b. } 8(-3 a-9)+6(3 a-7) & -7(m-4)+5(m-5) \\ \text { c. }-6(2 a+3)-5(9 a+9-7) & 70-(13 x-19)+10 x \\ \text { d. }-22(3 c+2)-5(-2 c+4) & 5(b+7)-4(b+8)\end{array} \)

dation \( \log _{3}(2 x-1)=3 \)

The following function is given. \( f(x)=3 x^{3}-7 x^{2}-75 x+175 \) a. List all rational zeros that are possible according to the Rational Zero Theorem. Choose the correct answer below.

dation \( \log _{3}(2 x-1)=3 \)

Watch the video that describes performing vector operations. Click here to watch the video. Given vectors \( \mathbf{u} \) and \( \mathbf{v} \), find \( \mathbf{( a )} 9 \mathbf{u}=\langle 9,9\rangle, \mathbf{v}=\langle 6,0\rangle \) (b) \( 9 \mathbf{u}+6 \mathbf{v} \) (c) \( \mathbf{v}-6 \mathbf{u} \). \( \begin{array}{ll}\text { (a) } 9 \mathbf{u}=\langle 81,81\rangle \\ \text { (b) } 9 \mathbf{u}+6 \mathbf{v}=\langle\square, \square\rangle\end{array} \)

Write the expression as a single logarithm. \( 6 \log _{c} x+7 \log _{c} y-\frac{1}{3} \log _{c} z \) A. \( 6 \log _{c} x+7 \log _{c} y-\frac{1}{3} \log _{c} z=\log _{c} \frac{y^{7} z^{1 / 3}}{x^{6}} \) B. \( 6 \log _{c} x+7 \log _{c} y-\frac{1}{3} \log _{c} z=\log _{c} \frac{x^{6} y^{7}}{z^{3}} \) O. \( 6 \log _{c} x+7 \log _{c} y-\frac{1}{3} \log _{c} z=\log _{c} \frac{x^{6} y^{7}}{z^{1 / 3}} \) O. \( 6 \log _{c} x+7 \log _{c} y-\frac{1}{3} \log _{c} z=\log _{c} \frac{x^{6} z^{1 / 3}}{y^{7}} \)