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Jouer Froggy Jumps
1. (5m²+14m-7)+(m²+7)=?
A
6m²+21m-7
B
6m+21m-7
C
6m²+21m+7
2. (10c+8b+6)-8(c-b+1)=?
A
18c+16b+2
B
2c-16b-2
C
2c+16b-2
3. (xy+yz+xy+10)+(8xy+2xy+5xz)=?
A
8xy+3yz+5xz
B
10xy+3yz+5xz+10
C
10xy+yz+5xz+10
4. (7y²-9)-(7y-y+5)=?
A
14-y
B
-14+y
C
14y²+14+y
5. (0,5a+0,2b)-2(2a-8b)
A
-3,5+16,2b
B
3,5a+15,8b
C
-3,5a+16,2b
6. -(2a+3b+4c)-(a+10c)
A
3a-3b+14c
B
-a+3b+15c
C
3a+3b-14c