What real values of x are not in the domain of
f(x)=1|x2+3x−4|+|x2+9x−10|
Not as difficult as it might appear
Note that when x = 1, both expressions in the denominator = 0
So ..... only x = 1 is not in the domain
See the graph here : https://www.desmos.com/calculator/wlhkfsdgpf
