Question

2+2^2+2^3+.....2^8=?

Answer 1

Since all the bases are the same, I merely added up all the exponents to equal 37, but that is the wrong answer. I also tried to factor out a 2^2 from each number, but I was lost as to which direction to go afterwards.

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


A) 2^9
B) 2^10
C) 2^16
D) 2^35
E) 2^37
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Answer 2

Heya ! Here is u r Ans >
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= 2+2^2 + 2^3 + 2^8 = ?

= 2 + 4 + 8 + 256

= 270
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Hope This Helps u ^_^