Home > CCA > Chapter 6 > Lesson 6.1.1 > Problem6-7

6-7.
1. Simplify each expression using only positive exponents. Homework Help ✎

1. (3xy3)(–2y)

2. (x3y2)(x–2y–2)

3. (–2x)–3

Remember that when you multiply, you add the exponents.

−6xy4

Refer to part (a).

y0 = 1

Remember that when you divide, you subtract the exponents.

$\text{Remember that \textit{x}^{ -1}=\frac{1}{\textit{x}}}$

$\frac{2}{\textit{x}^4}$

$\text{The expression is equivalent to \frac{1}{(-2\textit{x})^3}}$