Perform each operation below and simplify your results.

1. $\frac { x ^ { 2 } + 5 x + 6 } { x ^ { 2 } - 4 x } \cdot \frac { 4 x } { x + 2 }$

   Hint (a):

   Try factoring before multiplying to see if there are factors that make 1.

   Answer (a):

   $\frac{4(\textit{x}+3)}{{\textit{x}-4}}$

2. $\frac { x ^ { 2 } - 2 x } { x ^ { 2 } - 4 x + 4 } \div \frac { 4 x ^ { 2 } } { x - 2 }$

   Hint (b):

   Remember that dividing is the same as multiplying by the reciprocal.

   More Help (b):

   See part (a).