Question

using Identity find the product of each of the following


( x²+1+y) (x²+1-y)​

Answer 1

Answer:

given

(x+1/x) = 5

We need to find x2 + 1 / x2

Step-by-step explanation:

( x + 1 / x )2 = 25

= x2 + 1 / x2 + 2 (x)(1/x) = 25

= x2 + 1/x2 + 2 = 25

= x2 + 1 / x2 = 25 – 2

= x2 + 1 / x2=23

Hence x2 + 1 / x2 = 23

hope it was helpful to u