SOLUTION: please simplify ((1/(x + h)^2 - 1/x^2)/h)

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Question 733544: please simplify
((1/(x + h)^2 - 1/x^2)/h)
Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
%281%2F%28x+%2B+h%29%5E2+-+1%2Fx%5E2%29%2Fh =
%281%2F%28x+%2B+h%29%5E2+-+1%2Fx%5E2%29%22%F7%22h%2F1 =
Get LCD
%22%F7%22h%2F1 =

%28x%5E2-%28x%2Bh%29%5E2%29%2F%28x+%2B+h%29%5E2x%5E2%22%F7%22h%2F1 =
Invert the second fraction and change division to multiplication:
%28x%5E2-%28x%2Bh%29%5E2%29%2F%28x+%2B+h%29%5E2x%5E2%29%22%22%2A%22%221%2Fh =
%28x%5E2-%28x%2Bh%29%28x%2Bh%29%29%2F%28x+%2B+h%29%5E2x%5E2%22%22%2A%22%221%2Fh =
%28x%5E2-%28x%5E2%2B2hx%2Bh%5E2%29%29%2F%28x+%2B+h%29%5E2x%5E2%22%22%2A%22%221%2Fh =

%28x%5E2-x%5E2-2hx-h%5E2%29%2F%28x+%2B+h%29%5E2x%5E2%22%22%2A%22%221%2Fh =
%28cross%28x%5E2%29-cross%28x%5E2%29-2hx-h%5E2%29%2F%28x+%2B+h%29%5E2x%5E2%22%22%2A%22%221%2Fh =
%28-2hx-h%5E2%29%2F%28x+%2B+h%29%5E2x%5E2%22%22%2A%22%221%2Fh =
%28-h%282x%2Bh%29%29%2F%28x+%2B+h%29%5E2x%5E2%22%22%2A%22%221%2Fh =
-%28h%282x%2Bh%29%29%2F%28x+%2B+h%29%5E2x%5E2%22%22%2A%22%221%2Fh =
-%28cross%28h%29%282x%2Bh%29%29%2F%28x+%2B+h%29%5E2x%5E2%22%22%2A%22%221%2Fcross%28h%29 =
-%282x%2Bh%29%2F%28x+%2B+h%29%5E2x%5E2
Edwin