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Sagot :

Réponse :

1)

[tex]M= (a+1)^{2} \\ M=a^{2} +2a+1[/tex]

2)

[tex]N=(5x+2)^{2} \\ N= (5x+2)(5x+2)\\N=25x+10x+10x+4 \\ N=25x^{2} +20x+4[/tex]

3)

[tex]P=(3y-4)^{2} \\ P=9y^{2} - 24y+16[/tex]

4)

[tex]Q=(4-x)^{2} \\Q=(4-x)(4-x)\\ Q=16-4x-4x+x^{2} \\ Q=x^{2} -8x+16[/tex]

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