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Christian2001
@Christian2001
May 2019
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Bonjour sil vous plait
developer puis réduire
A=(2a+3)(3-5a)-4(a-3)
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Alyciap
A=2a×3+2a×(-5a)+3×3+3×(-5a)-4×a-4×(-3)
A=6a+10a²+9-15a-4a+12
A=10a²-13a+21
Voilà :)
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carmello
C est egale a 2 je pense je ne suis pas sur
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Sa fait 2 foi que je demande svp developer puis réduire: A= (2a+3)(3-5a)-(a-3)
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A=6a+10a²+9-15a-4a+12
A=10a²-13a+21
Voilà :)