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Sagot :

[tex](2x + 3) {}^{2} - (3x + 2) {}^{2} = 0[/tex]

[tex](2x + 3 - (3x + 2))(2x + 3 + 3x + 2) = 0[/tex]

[tex]( - x + 1)(5x + 5) = 0[/tex]

[tex] - x + 1 = 0 \: \: \: ou \: \: \: 5x + 5 = 0[/tex]

[tex]x = 1 \: \: \: ou \: \: \: 5x = - 5[/tex]

[tex]x = 1 \: \: \: ou \: \: \: x = - 1[/tex]

S = { -1 ; 1 }

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