Question

f(x)=x+4/x^2+1 Find f(-1)

Answer 1

How do you think we should start?

Answer 2

sub x with -1

Answer 3

I can't remember the rule for having a negative denominator.

Answer 4

oh wait, tell me what is \((-1)^2\)

Answer 5

2

Answer 6

also I have a feeling there should be parentheses around x^2+1

Answer 7

@Micheiou Learn BODMAS rule

Answer 8

Can you explain how you got that?

Answer 9

@FibonacciChick666 is right @Micheiou there is might be parentheses

Answer 10

I need to know where you went wrong

Answer 11

I don't know where to start...sorry...so confused :-/

Answer 12

3/2 is what I need to plug back into the formula?

Answer 13

Difference of quotient.

Answer 14

wait wait what? ok restart, you told me "sub x with -1" which is entirely correct. Now, I need to know what \((-1)^2\) is

Answer 15

also I am assuming this is your eq @Micheiou \[f(x)=\frac{x+4}{x^2+1}\]

Answer 16

Yes