Find the Missing Numerator and Denominator $\frac{\mathrm{x}^{2}}{\mathrm{x}^{2}+5 \mathrm{x}-36} \cdot \frac{?}{?}=\frac{\mathrm{x}(\mathrm{x}+4)}{4(\mathrm{x}+9)}$ A) $\frac{x^{2}+16}{4 x}$

Multiple Choice

Find the missing numerator and denominator.
- $\frac{\mathrm{x}^{2}}{\mathrm{x}^{2}+5 \mathrm{x}-36} \cdot \frac{?}{?}=\frac{\mathrm{x}(\mathrm{x}+4) }{4(\mathrm{x}+9) }$

A) $\frac{x^{2}+16}{4 x}$

B) $\frac{x(x-4) }{4(x-9) }$

C) $\frac{x+4}{4 x(x-9) }$

D) $\frac{x^{2}-16}{4 x}$