Réponses

2014-09-23T18:53:30+02:00
2x = 3
2x/2 = 3/2
x = 3/2

2√6 (3-√6)
= 2x3√6-2x√6x√6
= 6√6-2x6
=6(√6-2)   ou 6√6-12


(2-x)(2+x)
= 4+2x-2x-x²
4-x²