Question

Evaluate: $(-5{)}^5\times (-5{)}^{-9}$

• A. $\frac{1}{625}$
• B. $-\frac{1}{625}$
• C. $-625$
• D. $625$

Answer 1

The correct option is A $\frac{1}{625}$

$(-5{)}^5\times (-5{)}^{-9}=(-5{)}^{5-9}$

$=(-5{)}^{-4}$

$=\frac{1}{(-5{)}^4}$$=\frac{1}{625}$

So, option $A$ is correct.