Question

2^2x+2+2^2x+1+2^2x
${2}^{2x + 2} + {2}^{2x + 1} + {2}^{2x}$

Answer 1

$2^{2x+2}+ 2^{2x+1}+ 2^{2x}=(2^2+2+1)*2^{2x}=7*4^x$