-2^94/4 is not equal to 2^92 + 4*2^90. Instead, 2^92 + 4*2^90 =
2^94/2^2 + 4*2^94 /2^4
=> 2^94 / 4 + 2^94 / 4
=> 2*2^94/4
=> 2^94/2
Therefore we have 2^92 + 4*2^90 = 2^94 / 2 = 2^93
See eNotes Ad-Free
Start your 48-hour free trial to get access to more than 30,000 additional guides and more than 350,000 Homework Help questions answered by our experts.
Already a member? Log in here.