Question

[1+1/x+1][1-1/x-1]=7/8

Answer 1

Answer:

(1+ 1/x+1 )( 1- 1/x-1) = 7/8

(x+ 1+1) ( x-1 -1) = 7 ( x+1)( x-1)/8

8( x+2)( x-2) = 7( x+1)( x-1)

8 x^2 - 32 = 7x^2 - 7

8x^2 -7 x^2 = -7 +32

x^2 = 25

x= +-5