To simplify the expression using the product rule of exponents, we can rewrite the expression as follows:
If you have an expression like this:
\[ \frac{a^m}{a^n} \]
According to the quotient rule of exponents, you subtract the exponent in the denominator from the exponent in the numerator:
\[ \frac{a^m}{a^n} = a^{m-n} \]
If you specify that the expression involves \( \frac{x^2}{x^2} \):
\[ \frac{x^2}{x^2} = x^{2-2} = x^0 \]
And since \( x^0 = 1 \), the simplified form of the expression \( \frac{x^2}{x^2} \) is:
\[ 1 \]
If you have different numbers or variables in the numerator and denominator, please specify so I can provide the appropriate simplification!