## mdkk 3 years ago (x+h) squared - x squared divided by h

1. myininaya

$\frac{(x+h)^2-x^2}{h}$

2. heedcom

what is th question

3. myininaya

What would you like to do with this? Simplify?

4. mdkk

yes, i known i would have to multiple the x+h by itself but then i am not sure what to do with the inside terms once i do that

5. myininaya

$(x+h)^2=?$

6. myininaya

So after you do what you just said what does that expand to?

7. 03453660

use this formula (a+b)^2 = a^2 + 2ab + b^2 here a=x and b=h

8. mdkk

yes right now i have x^2 + 2xh + h^2 -x^2 divided by h

9. mdkk

and i think i would cancel the x^2 and -x^2

10. 03453660

yes exactly

11. mdkk

but when i get to 2xh+h^2 divied by h can i cancel the h in the 2xh with the other h's or can i not do that because it is a term with x? if that makes sense

12. myininaya

You have h in the denominator

13. myininaya

You can factor out h on top And assuming h does not equal 0 You can do what after that?

14. 03453660

you can cancel it out with the h in the dennomenator

15. mdkk

so would the final answer im left with be 2x + h ?

16. 03453660

yap

17. myininaya

Yes! :)

18. mdkk

oh alright, thank you both!