Page 94 - Mathématiques RAC1 volume 1 2020

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2
  a
j. x +  =
4
  4

1  2
k.  + x  =
2

2

a 2 2b  a 2 2b 
l.  –   +  =
 2 3   2 3 

Révision 2 Développe puis simplifie les expressions suivantes :

1. 3x (x + 1) + 2x =

2. (x + 7) (x – 2) =

3. (5x + 6) (2x – 1) =

4. (x + 2) (x – 5) + (x – 3) (x + 4) =

5. 3 (x – a) + a (3 – x) + x (a – 3) =

6. (x – 6)(x + 1) – (x + 6)(x – 1) =

7. (x+4) – 8 (x + 2) =
2

2
8. (a – 7) + (a + 7) =
2

ES Nyon-Marens BAMV ed 2020 maths Rac1