Answer
$45$
Work Step by Step
Plug in and use PEMDAS (parentheses, exponentiation, multiplication, division, addition, subtraction) to determine which operation goes first.
$\frac{3(1-2^4)}{1-2} = \frac{3(1-16)}{1-2} = \frac{3(-15)}{-1} = \frac{-45}{-1} = 45$
