Differentiate with respect to 'x'. $\displaystyle log_{4}(x^{2}) $

I know that $\displaystyle \frac{d}{dx}(log_a{x}) = \frac{1}{lna} \times \frac{1}{x} $

so, based on this formula, I got the answer: $\displaystyle \frac{1}{ln4} \times \frac{1}{x^{2}} $

But this is not the correct answer, can someone please show me how to correctly differentiate this function?

Thank you!