Question

Page : 1.7
If 2^x-1 + 2^x+1 = 320, then find x.

Answer 1

Hey mate !!!


here is your answer !!!


look this attachment ;-


hope it helps you !!



hence , the value of x is 7



thanks

Answer 2

heya mate !!!

here is your answer

ops sry plz refer the attachment for your answer

some additional data

laws i used to solve problem are

a^m+n = a^m × a^n

a^(-n) = 1/a

if bases are equal
then equate powers

a^m = a^n

m=n

note :- i used Y instead of a




hope it will help you

thanks !!!