Question

$(56{)}^3=$?

• A. $175616$
• B. $235616$
  
• C. $175656$
  
• D. None of these

Answer 1

Answer: (A)

$175616$

$56=7\times 8$
$\therefore {\left(56\right)}^3={\left(7\right)}^3\times {\left(8\right)}^3$
$=7\times 7\times 7\times 8\times 8\times 8$
$=343\times 512$
$=175616$
$\therefore$ The cube of $56=175616.$