November 2023 1 38 Report
Bonjour aidez moi svp voici la question:
Exercice
A- 50- (x +20)
B=-(10+z) + (x+5)
C = (x² - 4x)-(5x²+2x-1)
D--(3-x+x²) + (-2x + 3x² - 8)
E-x-4-(2 + x) + (x+5)
== -(x-8) + (x-6)-(7-x)
== (x² + 5x-4)-(-2x² +9x-7)
Supprimer les parentheses, puis séduire chaque expression.​
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