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Sagot :

LUWAN

Bonjour,

A = 2x + x² + 40 - 15x

A= x² -13x + 40

B= -10 +8x -24x +3x²

B= 3x² -16x -10

C= -3x² -7x -45x +5

C = -3x²-52x +5

Bonjour,

[tex]A = x(2+x) + 5(8-3x)[/tex]

[tex]A = 2x + x^2 + 40 - 15x[/tex]

[tex]A = x^2 - 13x + 40[/tex]

[tex]B = -2(5-4x) + 3x(-8 + x)[/tex]

[tex]B = -10 + 8x - 24x + 3x^2[/tex]

[tex]B = 3x^2 + 8x - 24x - 10[/tex]

[tex]B = 3x^2 - 16x - 10[/tex]

[tex]C = -x(3x + 7) + (-5)(9x -1)[/tex]

[tex]C = -3x^2 - 7x - 45x + 5[/tex]

[tex]C = -3x^2 - 52x + 5[/tex]

Bonne journée :)

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