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ilyanameudon
@ilyanameudon
January 2021
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A) (8x + 3) au carré
B) (5 + 7x) au carré
C)(x + 1 : 2) au carré
D)(1 : 2x + 1) au carré
E)(x + 2 : 3) au carré
F)(2x + 1 : 3) au carré
A) (x-3y)(x+3y)
B)(3x + 5y) (3x-5y)
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manamanou123
A) (8x+3)²=(8x)²+2×8x×3+3²
=36x²+48x+9
B) (5 + 7x)²=5²+2×5×7x+(7x)²
=25+70x+49x²
A) (x-3y)(x+3y)=x²-(3y)²
B)(3x + 5y) (3x-5y)=(3x)
²-(5y)²
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Lista de comentários
=36x²+48x+9
B) (5 + 7x)²=5²+2×5×7x+(7x)²
=25+70x+49x²
A) (x-3y)(x+3y)=x²-(3y)²
B)(3x + 5y) (3x-5y)=(3x)²-(5y)²