Question

- (x + 1) - (x² - 1) = x(2x + 1) - 2(x + 2)(x + 1) +20.​

Answer 1

Answer:

make the square both side of second equation we will get value of x^2+1/x^2 and from that we can get value of (x+1/x)^2 and after that we can know for sure the value of x^2-1/x^2 =(x+1/x)(x-1/x)

Step-by-step explanation: make braainliest