Question

x+1/x =4 then what is x2 1/x2

Answer 1

Answer:

14.here 2 beside the expressions refers to square/to the power 2

Step-by-step explanation:

x+1/x=4

squaring both sides,

(x+1/x)2=(4)2

->x2+1/x2+2*1/x*x=16

->x2+1/x2=16-2=14