Question

$\sqrt[3]{3(156+x)}=12$, then the value of x is:

• A. 1570
• B. 1572
• C. 1560
• D. 1512

Answer 1

The correct option is B 1572

$\sqrt[3]{3156+x}=12$
$\Rightarrow 156+x=(12{)}^3$
$\Rightarrow 156+x=12\times 12\times 12$
$\Rightarrow 156+x=1728$
$\Rightarrow x=1728-156=1572$