Question

If x square + 1/x square = 7
Then x+1/x = ?

Answer 1

Answer:

sorry I didn't know about this

(＠_＠;)

Answer 2

Answer:

Step-by-step explanation:

$x^{2} +\frac{1}{x^{2} } =7\\(x +\frac{1}{x} )^2-2=7\\(x+\frac{1}{x} )^2=9\\x+\frac{1}{x} =3$