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Emmabref
@Emmabref
May 2019
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Bonjour vous pouvez maider svp
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Verified answer
4
4 + 3 = 7
7² = 49
49 - 16 =
33
- 5
- 5 + 3 = - 2
-2² = 4
4 - ( 25) =
- 21
programme a
x
x + 3
(x + 3)²
( x + 3)² - x² = ( x + 3 - x) ( x + 3 +x )
3 ( 2 x + 3) =
6 x + 9
programme b
x
6 x
6 x + 9
les 2 programmes donnent le même résultat
6 x + 9 = 54
6 x = 54 - 9
6 x = 45
x = 7.5
il faut choisir 7.5 pour obtenir 0
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Verified answer
44 + 3 = 7
7² = 49
49 - 16 = 33
- 5
- 5 + 3 = - 2
-2² = 4
4 - ( 25) = - 21
programme a
x
x + 3
(x + 3)²
( x + 3)² - x² = ( x + 3 - x) ( x + 3 +x )
3 ( 2 x + 3) = 6 x + 9
programme b
x
6 x
6 x + 9
les 2 programmes donnent le même résultat
6 x + 9 = 54
6 x = 54 - 9
6 x = 45
x = 7.5
il faut choisir 7.5 pour obtenir 0