February 2021 0 91 Report
1) factoriser les expressions suivantes, en fesant apparaître un facteur comun a) A(x) = (2x-1) (x+3) + 2x - 1
b) B(x) = (x+1)² + (x+1) (x-2) + x + 1
On souhaite factoriser C(x) = (2x-1) (x+2) - 2x+1
a. recopier et compléter : C(x) = (2x-1) (x+2) + (-1) x (................).
B. En détuire une factorisation de C(x).
Factoriser
a) D(x) = (x-2) (x+1) - x+2
b) E(x) =(x-3)² - x+3
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