Let
f(x)={−x−3if x≤1,x2+1if x>1.
Find the sum of all values of $x$ such that $f(x) = 0$
.
-x - 3 = 0 x/2 + 1 = 0
-x = 3 x/2 = -1
x = -3 x = -2
The first value of x is in the domain of - x - 3
The second value of x is NOT in the domainn of x/2 + 1
So .....
-3
+206 
