Supprimer les parentheses puis reduire : 

 

- (2x + 11) - 4x² - (8x² - 5x) + 17 

 

 

Merci ;) bon courage 

Descriere autoportret
Vreau cateva exemple

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b 2/5,2/7,2/3
c 5/6,3/6, 1/6
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Oh, poor baby!

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That boy needs to chill out!
3. ¡Dame un break!
You're welcome!
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Just a minute!
5. Voy a mopear el piso.
I

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