Multiply and simplify:

$\displaystyle \frac{{{x}^{{2}}-{36}}}{{{x}^{{2}}-{4}{x}-{12}}}\cdot\frac{{{x}+{2}}}{{{7}{x}}}$

Enter the numerator and denominator separately in the boxes below. If the denominator is 1, enter the number 1. Do not leave either box blank. Answer: