Question

If x + 1



= 5, then x2 + 1



2=?​

Answer 1

Answer:

We have ,x- 1/x=5

Then x-1=5x

5x-x=-1

4x=-1

X=-1/4

Now we have the value of x

X^2-1/x^2=(-1/4)^2-1/(-1/4)^2=(1/16)-1/( 1/16)

(-15/16) × 16/1= -15

Answer 2

Answer:

we need to find x2 + 1/ x2

x2 + 1/x2 = 2 =25

x2 +1 / x2 = 25 -2

x2 +1 / x2 =23

hence ∴x2 +1 /x2 =23

Step-by-step explanation: