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Sagot :

SOLENEROUAN123

Réponse:

A =

[tex]3x \times 8x + 3x \times 8 = 24x^{2} + 24x[/tex]

B =

[tex]4x \times ( - 2x) - 4x \times 3 = - 8x^{2} - 12x[/tex]

C =

[tex] - 10 \times 8x - 10 \times ( - 9) = - 80x + 90[/tex]

D =

[tex]6 \times 7x - 6 \times 10 = 42x - 60[/tex]

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