Answer
$62$
Work Step by Step
Plug in and use PEMDAS (parentheses, exponentiation, multiplication, division, addition, subtraction) to determine which operation goes first.
$\frac{2(1-5^3)}{1-5} = \frac{2(1-125)}{1-5} = \frac{2(-124)}{-4} = \frac{-248}{-4} = \frac{248}{4} = 62$