qwertyfreak
Look at drawing...
Multiply and simplify.



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qwertyfreak
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dw:1336407343381:dw

jhonyy9
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how can you factoriz x^2 4 and x^2 1 ?

jhonyy9
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know you this :a^2 b^2 =(ab)(a+b)

qwertyfreak
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idk its just the question, and it doesn't say factorize, just multiply and simplify

jhonyy9
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yes i know but if you factoriz you will can easy simplify it

jhonyy9
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(x2)(x+2) x+1
 *  =
(x1)(x+1) x+2

jhonyy9
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can you continue ?

jhonyy9
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can you simplifie it now ?

qwertyfreak
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no im stuck

jhonyy9
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because in numerator there is (x+2) and x+1 and these are in denominator too so hence you can simplifie these terms  yes ?

jhonyy9
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so after you will simplifie these terms what will remain there ?

jhonyy9
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x2

x1
 these will remain  right ?