Question

x-1/x=5, what is the value of
x²+ 1/x²​

Answer 1

Answer:

x²+ 1/x² = 27

Step-by-step explanation:

x-1/x=5

squaring both sides,

(x-1/x=5)^2

x²-2+ 1/x²=25

x²+ 1/x²=25+2

x²+ 1/x²= 27

Answer 2

Answer:

x-1/x = 5

x= -1/4

then x^2+1/x^2 = 17×16÷16×1

Now 17 is a correct answer