turkey-yks 2011 Q23

turkey-yks · Other · lys1-math Exponential Equations & Modelling Solve Exponential Equation for Unknown Variable

$$2 ^ { 2 x } - 2 \cdot 2 ^ { x } - 8 = 0$$
Given this equation, which of the following is x?
A) 2
B) 1
C) $\ln 2$
D) $\ln 4$
E) $2 \ln 4$

$$2 ^ { 2 x } - 2 \cdot 2 ^ { x } - 8 = 0$$

Given this equation, which of the following is x?\\
A) 2\\
B) 1\\
C) $\ln 2$\\
D) $\ln 4$\\
E) $2 \ln 4$