bonjour est ce que qq peux m'aider c pour aujourd'hui (justifier !)
A = 4(x-3) - 7
B = -5(y+3)-6
C = -4x²-12y-6y-3x²-2
merci d'avance
A = 4(x-3) - 7
B = -5(y+3)-6
C = -4x²-12y-6y-3x²-2
merci d'avance
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Bonjour;
A = 4(x-3) - 7
= 4*x -3*4 -7
= 4x -12-7
= 4x -19
B = -5(y+3)-6
= -5*y -5*3 -6
= -5y -15-6
= -5y -21
C = -4x²-12y-6y-3x²-2
= -4x² -3y² -12y-6y-2
= -7y² -18y -2