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Sagot :

[tex]3x(2x-4)+18=6x(x-1)[/tex]

[tex]6x^{2} -12x+18=6x(x-1)[/tex]

[tex]6x^{2} -12x+18=6x^{2} -6x[/tex]

[tex]-12x+18=-6x[/tex]

[tex]-12x+6x=-18[/tex]

[tex]-6x=-18[/tex]

[tex]x=3[/tex]

Bonsoir

3X(2X-4)+18=6X(X-1)

6X²-12X+18=6X²-6X

6X²-6X²-12X+6X=-18

-6X=-18

X=-18/-6

X=3

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