If x = 5, then the value of the expression x^2 - 2 + 1x^2 is?

Answer: Option A

$$\begin{array}{rl}& \text{According to the question,}\\ & \text{If }x=5\\ & \therefore x^2-2+\frac{1}{x^2}\\ & ={\left(x-\frac{1}{x}\right)}^2\\ & ={\left(5-\frac{1}{5}\right)}^2\\ & ={\left(\frac{24}{5}\right)}^2\\ & =\frac{576}{25}\end{array}$$