### Home > GB8I > Chapter 6 Unit 7 > Lesson INT1: 6.2.2 > Problem6-65

6-65.

Rewrite each expression. In parts (a) and (b), write your answers without negative exponents. In parts (c) and (d), write your answers in scientific notation.

1. $5^0·2^{-3}$

What is the value of $5^{0}$?
What effect does a negative exponent have on the base?
Review the Math Notes box in Lesson 1.3.2.

1. $\frac { a ^ { 3 } } { b ^ { - 2 } } \cdot \frac { a b ^ { 2 } } { a ^ { 4 } }$

$b^{4}$

1. $2.3\times10^{-3}·4.2\times10^2$

Add exponents when multiplying.

1. $(3.5 × 10^{3})^{2}$