Réponse :
Bonjour,
[tex](3x - 7) (-2x + 1) = 0[/tex]
[tex]3x - 7 = 0[/tex]
[tex]-2x + 1 = 0[/tex]
[tex]x=\frac{7}{3}[/tex]
[tex]x = \frac{1}{2}[/tex]
[tex]5x -\frac{4}{3} = \frac{10}{3}[/tex]
[tex]5x=\frac{10}{3} +\frac{4}{3}[/tex]
[tex]5x = \frac{14}{3}[/tex]
[tex]x = \frac{14}{15}[/tex]
[tex]2x^{2} = 100[/tex]
[tex]x^{2} = 50[/tex]
[tex]x = -5\sqrt{2}[/tex]
[tex]x=5\sqrt{2}[/tex]
[tex]25x^{2} / 16 = 0[/tex]
[tex]\frac{x^{2} }{16} =0[/tex]
[tex]x^{2} =0[/tex]
[tex]x = 0[/tex]
[tex]25x^{2} - 16 = 0[/tex]
[tex]25x^{2} = 16[/tex]
[tex]x^{2} = \frac{16}{25}[/tex]
[tex]x = -\frac{4}{5}[/tex]
[tex]x = \frac{4}{5}[/tex]
[tex](x + \sqrt{3} ) (2x - \sqrt{3}) = 0[/tex]
[tex]x + \sqrt{3} = 0[/tex]
[tex]2x - \sqrt{3} = 0[/tex]
[tex]x = - \sqrt{3}[/tex]
[tex]x = \frac{\sqrt{3} }{2}[/tex]
[tex]121 - 100x^{2} = 0[/tex]
[tex]-100x^{2} = -121[/tex]
[tex]x^{2} = \frac{121}{100}[/tex]
[tex]x = -\frac{11}{10}[/tex]
[tex]x = \frac{11}{10}[/tex]
[tex]10x^{2} - 28x = 0[/tex]
[tex]2x*(5x-14)=0[/tex]
[tex]x*(5x-14)=0[/tex]
[tex]x =0[/tex]
[tex]x = \frac{14}{15}[/tex]
Voila bonne journée..
