Question

Find the value of x in the given equation f(x)
$2 { }^{x} + 2 {}^{x + 1} = 24$

Answer 1

=>${2}^{x} + {2}^{x + 1} = 24$

=>$(1 + 2) {2}^{x} = 24$

=>$3 . {2}^{x} = 24$

=>${2}^{x} = 8$

=>${2}^{x} = {2}^{3}$

•°• x=3