Question

please give me answer for this question..........
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Answer 1

Step-by-step explanation:

your answer attached in the photo

Answer 2

hi mate''

solution

2^m-1 + 2^m+1 = 640

so , mate

(1 + 2^2) * 2^m-1 = 640

(1 + 4) * 2^x-1 = 640

5 * 2^x-1 = 640

divide both side by 5

2^x-1 = 128

2^x-1 = 2^7

hence , mate here

x-1 = 7

x = 7+1

x = 8

so, i hope mate it helpfull to you..