Question

PLEASE HELP!!!!!!!!!!!

Answer 1

The answer is B.
`(2x+1)/(x^(2)-7) ,x\\eq √(7)`

Explanation:

`f(x)=2x+1\\g(x)=x^(2) -7`

Focusing on the denominator makes it equal to = 0

`x^(2) -7=0\\x^(2) =7\\x=+√(7),-√(7)`

If the denominator equals zero then the equation ends up undefined. A number over zero, zero can not go divided into a number.