Answer
$1001100$
Work Step by Step
Replace each hexadecimal digit with its equivalent 4-digit binary form. Add zeroes to the front of the binary value if necessary to create a 4-digit number.
$4_{16}=4_{10}=2^2=100_2=0100_2$
$C_{16}=12_{10}=2^3+2^2=1100_2$
$\underbrace{\ \ \ 4\ \ \ }\underbrace{\ \ \ C\ \ \ }$
$0100\ \ 1100$
