From the opt (a) \( 15+\sqrt{3} \) \( 15+5 \sqrt{3} \)

(5) \( \frac{6}{2 \eta-4}=\frac{5}{4 p+3} \)

Evaluate the expression without using a calculatc \( \log _{2} 1 \) \( \log _{2} 1= \) (Type an integer or a simplified fraction.)

Write the expression in the standard form \( \mathrm{a}+\mathrm{b} i \). \( \qquad-6+4 i)-(8-3 i) \) \( (-6+4 i)-(8-3 i)=\square \) (Simplify your answer. Type your answer in the form \( a+b i \).

Find the exact value of the logarithm without using a calcula \( \log _{5} 125 \) \( \log _{5} 125=\square \) (Type an integer or a simplified fraction.)

2. 39,65