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Sagot :

TENURF

Bonjour

[tex](7^5+1)^2-(7^5+1)(7^5-1)-2(7^5-1) \\\\=(7^5+1)(7^5+1-(7^5-1))-2(7^5-1) \\\\=(7^5+1)(7^5+1-7^5+1)-2(7^5-1) \\\\=2(7^5+1)-2(7^5-1) \\\\=2(7^5+1-(7^5-1)) \\\\=2(7^5+1-7^5+1) \\\\=2*2=4[/tex]

Merci

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