Question

A rais equação ponecial 2×+³=32
A)0
B)2
C)4
D)6
E)8

Answer 1

$\Large\boxed{\begin{array}{l}\rm A\,ra\acute iz\,da\,equac_{\!\!,}\tilde ao\,exponencial~2^{x+3}=32\,\acute e:\\\rm a)0\\\rm b)2\\\rm c)4\\\rm d)6\\\rm e)8\\\underline{\boldsymbol{soluc_{\!\!,}\tilde ao\!:}}\\\sf 2^{x+3}=32\\\sf 2^{x+3}=2^5\\\sf x+3=5\\\sf x=5-3\\\sf x=2\\\huge\boxed{\boxed{\boxed{\boxed{\sf\maltese~alternativa~B}}}}\end{array}}$