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131omarseille
@131omarseille
April 2019
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1) Développé et réduis les expressions suivantes :
A= (2a+5) (4a+3)
B= (5x-2) (5x-8)-(3x-5) (x+7)
2) Factorise et réduis les expressions suivantes:
C= c(c+4)+c(c au carré +3c-7)
D= (t+2)(2t-1)+(t+2)(3t+2)
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winner123
Verified answer
Bonsoir
A = 8 a² + 6 a + 20 a +15
a = 8 a² + 26 a + 15
B = 25 x² - 40 x - 10 x + 16 - ( 3 x² + 21 x - 5 x - 35)
B = 25 x² - 50 x + 16 - 3 x² - 21 x + 5 x + 35
B = 22 x² - 66 x + 51
C = c² + 4 c + c² + 3 c² - 7c
C = c ( c + 4 + c + 3 c - 7)
C = c ( 5 c - 3)
D = ( t + 2) ( 2 t - 1 + 3 t +2)
D = (t + 2) ( 5 t + 1)
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131omarseille
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Verified answer
BonsoirA = 8 a² + 6 a + 20 a +15
a = 8 a² + 26 a + 15
B = 25 x² - 40 x - 10 x + 16 - ( 3 x² + 21 x - 5 x - 35)
B = 25 x² - 50 x + 16 - 3 x² - 21 x + 5 x + 35
B = 22 x² - 66 x + 51
C = c² + 4 c + c² + 3 c² - 7c
C = c ( c + 4 + c + 3 c - 7)
C = c ( 5 c - 3)
D = ( t + 2) ( 2 t - 1 + 3 t +2)
D = (t + 2) ( 5 t + 1)