Question

2^x+2 + 2 ^x+5 +2^x+3 cum dau in factori ?

Answer 1

Dai factor comun pe $2^{x+2} .$
$2^{x+2}+ 2^{x+5} + 2^{x+3}= 2^{x+2}(1+ 2^{3}+2)= 2^{x+2}*11.$