Question

2$2^{X} + 2^{X+1} + 2^{X+2}+ 2^{x+3} + 2^{X+4}$

Answer 1

2^X+2^X.2+2^X.2²+2^X.2³+2^X.2^4=2^X(1+2+4+8+16)=
2^X.31