January 2021 0 71 Report
Aidez moi svp c pour 19 pts (3ème année de collège) x^2- 5x- 6= 0
4x^2- 16 = (x-2)^2
4x^2- 9= (2x-3)(1-x)
3x^2-9= (x-√3)
9x^2- 5= x(3x-√5)
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