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rayraynou
@rayraynou
June 2021
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Bonsoir, comment fait-on pour passer de - x²/2 + 50x à -1/2( x² - 100x ) merci d'avance
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overjay
Verified answer
Tu factorises pas -1/2 :
-x²/2 = -1/2 (x²)
50 = 1/2 (100) <=> 50x = 1/2(100x) <=> 50x = -1/2 (-100x)
D'où
- x²/2 + 50x = -1/2( x² - 100x )
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Verified answer
Tu factorises pas -1/2 :-x²/2 = -1/2 (x²)
50 = 1/2 (100) <=> 50x = 1/2(100x) <=> 50x = -1/2 (-100x)
D'où
- x²/2 + 50x = -1/2( x² - 100x )