To solve the equation \( x^2 = 7^8 \) by inspection, we can take the square root of both sides.
\[ x = \pm \sqrt{7^8} \]
Since \( 7^8 \) can be rewritten as:
\[ \sqrt{7^8} = 7^{8/2} = 7^4 \]
Thus, the solutions for \( x \) are:
\[ x = 7^4 \quad \text{and} \quad x = -7^4 \]
Now calculating \( 7^4 \):
\[ 7^4 = 2401 \]
Therefore, the two real solutions are:
\[ -7^4 \quad \text{and} \quad 7^4 \]
To express the lesser number first, the final answer is:
{ -7^4, 7^4 }