15. Find the domain of each of the following functions and write the answers in builder notation. (a) \( f(x)=\frac{x}{x^{2}+3 x+2} \) (b) \( f(x)=\frac{3 x}{2 x-8} \)

9) Resolver las siguientes ecuaciones a. \( 4(x-2)+8=5 x-3 \)

ACTVIDADES: 1. Extrae factor común. (2 Puntos) \( 5 x^{2}-40 x^{3}+80 x^{4}= \)

What is the product property of logarithms?

\( \sqrt{3}(x-y-2)+2 x-y=7 \) tenglamani butun sonlarda yeching. \( \begin{array}{ll}\text { A) }(2 ; 1) & \text { B) }(5 ; 3) \\ \text { C) }(3 ; 4) & \text { D) }(6 ; 4)\end{array} \)

Stesso esponente \( \bigcirc \) ESERcIzIo GuIDA2 Esegui, usando le proprietà delle potenze. a. \( 5^{9} \cdot 3^{9}=\quad 9 \) b. \( 11^{11} \cdot 3^{11}= \) c. \( 10^{10} \cdot 52^{10}= \) d. \( 2,5^{6} \cdot 4^{6}= \) e. \( 1^{2} \cdot 2^{2} \cdot 3^{2}= \) f. \( 13^{20} \cdot 2^{20} \cdot 10^{20}= \)