Question

\(\left(2^2+4\right).2^n=32\)

Answer 1

(2²+4).2ⁿ=32
(4+4).2ⁿ=32
8.2ⁿ=32
2ⁿ=32:8
2ⁿ=4
2ⁿ=2²
n=2

Answer 2

N=2

Answer 3

\(\left(2^2+4\right).2^n=32\)

\(\Rightarrow2^3.2^n=2^5\)

\(\Rightarrow2^n=2^2\)

\(\Rightarrow n=2\)

Answer 4

Ta có: \(\left(2^2+4\right)\cdot2^n=32\)

\(\Leftrightarrow2^n=4\)

hay n=2