Question

Express $512\times 729$ in exponential form:

• A. $2^8\times 3^3$
• B. $2^9\times 3^6$
• C. $2^7\times 3^4$
• D. $2^9\times 3^7$

Answer 1

The correct option is B

$2^9\times 3^6$

$512=2\times 2\times 2\times 2\times 2\times 2\times 2\times 2\times 2=2^9$
$729=3\times 3\times 3\times 3\times 3\times 3=3^6$

=$2^9\times 3^6$