+290 Let
f(x)=11+21+3x.
There are three real numbers x that are not in the domain of f(x). What is the sum of those three numbers?
+1388
There are three real numbers x that are not in the domain of f(x).
What is the sum of those three numbers?
x = 0 results in a zero in the denominator 3 / x.
x = –3 results in a zero in the denominator 2 / (1 + 3 / x).
x = –1 results in a zero in the denominator 1 + 2 / (1+ 3 / x)
The sum of the three numbers is – 4.
.
