we know that the denominator can not be zero so (4x²-4)=0 4x²=4 x²=1----> x=(+/-)√1 x1=1 x2=-1 the values of x=1 and x= -1 make the denominator zero, therefore they do not belong to the domain of the function
the answer is the domain of the function is all real numbers except 1 and -1
