Question

What is the sum of values 2+2^2+2^3+......+2^8

Answer 1

Answer:

510.

Step-by-step explanation:

2+2^2+2^3+......+2^8

=2+2^2+2^3+2^4+2^5+2^6+2^7+2^8

=2+4+8+16+32+64+128+256

=510