Question

$( {4}^{x} ) {}^{2} = 16 \times {2}^{x}$
​equação exponencial

Answer 1

Resposta:

$(4^x)^2=16\times2^x\\ \\ (2^{2x})^2=2^4\times2^x\\ \\ 2^{4x}=2^{4+x}\\ \\ cancela~~a~~base~~2\\ \\ 4x=4+x\\ 4x-x=4\\ 3x=4\\ \\ x={4\over3}$