bonjour vous pouvez aidez svp
Développer et réduire les expressions obtenues lorsque cela est possible :
• 5 ( x + 2 ) = …………………………………………………………………………………………..
• 7 ( 3 + 5x ) = …………………………………………………………………………………………
• - 3 ( 4 – x ) = ………………………………………………………………………………………….
• - 2 ( 2x – 9 ) = ………………………………………………………………………………………..
• - 6 ( x + 3 ) = …………………………………………………………………………………………
• 4 + ( x + 1 ) = …………………………………………………………………………………………
• 7x – ( 4 – 3x ) = ……………………………………………………………………………………….
• - 2x + ( 8 – 3x ) = …………………………………………………………………………………….
• 2 ( x² + 1 ) + ( - 3 x )² - ( x + 4 ) = …………………………………………………………………
………………………………………………………………………………………………………….
Développer et réduire les expressions obtenues lorsque cela est possible :
• 5 ( x + 2 ) = …………………………………………………………………………………………..
• 7 ( 3 + 5x ) = …………………………………………………………………………………………
• - 3 ( 4 – x ) = ………………………………………………………………………………………….
• - 2 ( 2x – 9 ) = ………………………………………………………………………………………..
• - 6 ( x + 3 ) = …………………………………………………………………………………………
• 4 + ( x + 1 ) = …………………………………………………………………………………………
• 7x – ( 4 – 3x ) = ……………………………………………………………………………………….
• - 2x + ( 8 – 3x ) = …………………………………………………………………………………….
• 2 ( x² + 1 ) + ( - 3 x )² - ( x + 4 ) = …………………………………………………………………
………………………………………………………………………………………………………….
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Bonjour
Développer et réduire les expressions obtenues lorsque cela est possible :
• 5 ( x + 2 ) = 5x + 10
• 7 ( 3 + 5x ) = 21 + 35x
• - 3 ( 4 – x ) = - 12 + 3x
• - 2 ( 2x – 9 ) = 4x + 18
• - 6 ( x + 3 ) = - 6x - 18
• 4 + ( x + 1 ) = 4 + x + 1 = x + 5
• 7x – ( 4 – 3x ) = 7x - 4 + 3x = 4x - 4
• - 2x + ( 8 – 3x ) = 2x + 8 - 3x = - x + 8
• 2 ( x² + 1 ) + ( - 3 x )² - ( x + 4 )
= 2x² + 2 - 3x² - x - 4
= - x² - x - 2.