Question

(1+1/x+1)(1-1/x-1)=7/8​

Answer 1

x+1+1/x+1 × x-1-1/x-1 = 7/8

x+2/x+1 + x-2/x-1 = 7/8

x²-2²/x²-1² = 7/8

8(x²-4) = 7(x²-1)

8x²-7x²-32+7 = 0

x²- 25 = 0

x²- 5² = 0

(x+5) (x-5) = 0

x= (-5) , x= (5)