Question

$(72{)}^3=$?

• A. $373248$
• B. $473258$
• C. $383244$
• D. None of these

Answer 1

Answer: (A)

$373248$

$72=8\times 9$
$\therefore {\left(72\right)}^3={\left(8\right)}^3\times {\left(9\right)}^3$
$=8\times 8\times 8\times 9\times 9\times 9$
$=512\times 729$
$=373248$
$\therefore$ The cube of $72=373248.$