Développe chaque expression, puis donnes-en une écriture simplifiée.
[tex]a = 5 \times (a + 7)[/tex]
A=.......×.......+.......×.......
A=.....................
[tex]b = 3 \times (10 + b)[/tex]
B=.......×.......+.......×........
B=......................
[tex]c = 7 \times (11 + c)[/tex]
C =.......×........+.......×........
C =....................
[tex]d = 8 \times (d + 8)[/tex]
D=........................
D=........................
[tex]e = 2 \times (a - 4)[/tex]
E =....................
E =....................
[tex]f = 5 \times (6 - b)[/tex]
F =..................
F =..................
[tex]g = 4 \times (9 - c)[/tex]
G =....................
G =....................
[tex]h = 10 \times (d - 3)[/tex]
H =......................
H =......................​
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