Question

x-1/x=5,find the value of x²+1/x²​

Answer 1

Answer: 27

Step-by-step explanation:

x-1/x=5

(Squaring both the sides)

(x-1/x)²=5²

x²+1/x²-2=25

x²+1/x²=25+2

∴ x²+1/x²=27

Answer 2

Answer:

x-1/x=5

so

x-1=5(x)

x-1=5x

5x-x= -1

4x= -1

x = -1/4

so

(-1/4)^2+1/(-1/4)^2

1/16+1/(1/16)

1/16+16/1

1+256/16

257/16

16.06