### Home > INT3 > Chapter 12 > Lesson 12.1.1 > Problem12-16

12-16.

Simplify each expression in parts (a) through (c) below. Then complete part (d).

1. $xy(\frac{1}{x}+\frac{1}{2y})$

Distribute the $xy$ to both terms in the parentheses ( ).
Then simplify.

$\textit{y}+\frac{\textit{x}}{2}$

2. $ab(\frac{2}{a}+\frac{4a}{b})$

$2b+4a^2$

3. $2x\left(3−\frac{1}{2x}\right)$

4. What expression would go in the box to make the equation $\square(\frac{2}{x}+\frac{7}{y})=2y+7x$ true?

See the previous parts of this problem for clues.