Question

for f(x)=1/x^2-3 find for (2+h)

Answer 1

hi!!

Answer 2

\[f(\spadesuit)=\frac{1}{\spadesuit^2-3}\] replace \(\spadesuit\) by \(2+h\)

Answer 3

@misty1212 i did I got 1/3h is that right?

Answer 4

idk i did't do it, but i am sure it is wrong

Answer 5

lets go slow

Answer 6

first step is \[f(2+h)=\frac{1}{(2+h)^2-3}\]

Answer 7

second step is to square the \(2+h\) i.e. do \((2+h)(2+h)=4+4h+h^2\) giving
\[\frac{1}{4+4h+h^2-3}\]

Answer 8

third step is the arithmetic, final answer is \[\frac{1}{4h+h^2+1}\]

Answer 9

ohh ok thank you I forgot to square it, can you help me with one more problem?

Answer 10

sure i will go to that post