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Alison0708
@Alison0708
May 2019
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Bonjour j'ai un exercice de math a faire pour demain et je n'arrive pas a le faire pouvez vous m'aidez s'il vous plait???
factorise ses expression:
A:
- 16
B: 1 - y²
C: 100
- 9
D: 36 - 81
E: 4
- 25
F: (t+3)² - 16
G: (2x + 1)² - 25
H: (3i + 7)² - (i+5)²
Merci d'avance
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charlotte49
Verified answer
Pour factoriser avec A²- B²= (A+B)(A-B)
A: x² - 16 = (x+4)(x-4)
B: 1 - y² = (1 +y)( 1-y)
tu peux continuer si tu y arrives ...
2 votes
Thanks 0
winner123
Bonjour
a = ( x - 4) ( x + 4)
b = ( 1 - y) ( 1 + y)
c = ( 10 x - 3 ) ( 1 x + 3)
d = ( 6 - 9 x ) ( 6 + 9x)
e = non factorisable
f = ( t + 3 +4) ( t + 3 - 4) = ( t + 7) ( t - 1)
g = ( 2 x + 1 + 5) ( 2 x + 1 - 5) = ( 2 x + 6) ( 2 x - 4)
h = ( 3 i + 7 + i + 5) ( 3 i + 7 - i - 5) =
( 4 i + 12) ( 2 i + 2)
0 votes
Thanks 0
winner123
oui erreur de frappe 10 x + 3
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Verified answer
Pour factoriser avec A²- B²= (A+B)(A-B)A: x² - 16 = (x+4)(x-4)
B: 1 - y² = (1 +y)( 1-y)
tu peux continuer si tu y arrives ...
a = ( x - 4) ( x + 4)
b = ( 1 - y) ( 1 + y)
c = ( 10 x - 3 ) ( 1 x + 3)
d = ( 6 - 9 x ) ( 6 + 9x)
e = non factorisable
f = ( t + 3 +4) ( t + 3 - 4) = ( t + 7) ( t - 1)
g = ( 2 x + 1 + 5) ( 2 x + 1 - 5) = ( 2 x + 6) ( 2 x - 4)
h = ( 3 i + 7 + i + 5) ( 3 i + 7 - i - 5) = ( 4 i + 12) ( 2 i + 2)