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Fox772
@Fox772
April 2019
1
22
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BONJOUR AIDEZ MOI SVP URGENT C4EST L'EXCERCICE 1
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slyz007
Verified answer
1) E=(5x+2)²-(3x+2)(x+7)=25x²+20x+4-(3x²+21x+2x+14)
E=25x²+20x+4-3x²-23x-14
E=22x²-3x-10
2) si x=-2, E=22*(-2)²-3*(-2)-10=22*4+3*2-10=88+6-10=84
si x=√2, E=22*2-3√2-10=34-3√2
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Bonjour vous pouvez m'aidez pour l'exercice 1
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Aidez moi svp je comprends rien c'est pour demain
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Verified answer
1) E=(5x+2)²-(3x+2)(x+7)=25x²+20x+4-(3x²+21x+2x+14)E=25x²+20x+4-3x²-23x-14
E=22x²-3x-10
2) si x=-2, E=22*(-2)²-3*(-2)-10=22*4+3*2-10=88+6-10=84
si x=√2, E=22*2-3√2-10=34-3√2