January 2021 0 44 Report
Bonjsoir les amis Jai un dm en math jarrive pas a faire cela vous pouvez maider silvouplaitt ?
factoriser :
-3(2x+1)+(1-x)(1+2x)
5(x+3)(x-1)+x²-9
3x(x+2)-x²+4

resoudre equation:
(2x-1)(3x-5)(4-7x)=0
(2x-4)(x+5)+x²-25=0

voila bisous
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