Question

If x+1/x =5, then x²+1/x²=​

Answer 1

Answer:

sorry I didn't know the answer

Answer 2

Answer:

${x}^{2} + \frac{1}{ {x}^{2} } = {(x + \frac{1}{x} })^{2} - 2 \\ = {5}^{2} - 2 \\ = 25 - 2 \\ = 23$