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Sagot :

JENNYF

2x+6x=(x+3)2

2x+6x=2x+6

4x=2x+6

4x-2x=6

2x=6

x=6/2=3

x=3

 

2x+8x=(x+4)2

10x=2x+8

8x=8

x=8/8=1

x=1

bonjour donc voila

 

2x+6x=(x+3)x2

2x+6x=2xX+2x3

2x+6x=2x+6

6x-2x=6

4x=6+2x

4x-2x=6

2x=6

x=6/2=3

jespere tavoir aider :)

x=6/6

x=1

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