mdkk
(x+h) squared - x squared divided by h
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myininaya
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\[\frac{(x+h)^2-x^2}{h}\]
heedcom
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what is th question
myininaya
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What would you like to do with this?
Simplify?
mdkk
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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
myininaya
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\[(x+h)^2=?\]
myininaya
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So after you do what you just said what does that expand to?
03453660
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use this formula (a+b)^2 = a^2 + 2ab + b^2
here a=x and b=h
mdkk
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yes right now i have x^2 + 2xh + h^2 -x^2 divided by h
mdkk
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and i think i would cancel the x^2 and -x^2
03453660
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yes exactly
mdkk
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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
myininaya
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You have h in the denominator
myininaya
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You can factor out h on top
And assuming h does not equal 0
You can do what after that?
03453660
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you can cancel it out with the h in the dennomenator
mdkk
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so would the final answer im left with be 2x + h ?
03453660
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yap
myininaya
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Yes! :)
mdkk
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oh alright, thank you both!