Question

Select all the expressions having exponent $4.$

• A. $4^3$
• B. $7^4$
• C. $4^5$
• D. $(-5{)}^4$

Answer 1

Answer: (B), (D)

$(-5{)}^4$


Let's list down the exponents of the given options.

$\text{Expression}$	$\text{Exponent}$
$4^3$	$3$
$\underset{–}{7^4}$	$\underset{–}{4}$
$4^5$	$5$
$\underset{–}{(-5{)}^4}$	$\underset{–}{4}$

As per the above table, $7^4$ and $(-5{)}^4$ have the same exponent, which is $4.$