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filleintelligente
@filleintelligente
June 2021
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Coucou !
Pourriez vous m'aider à factoriser cette expression, s'il vous plaît ?
Merci :)
(2x+1)²-16
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charlotte49
Factoriser:
(2x+1)²-16= ((2x+1)-4) ((2x+1) +4)
= ( 2x +1-4)(2x+1+4)
= (2x -3)(2x +5)
Rappel:
A² -B² = (A-B) (A+B)
1 votes
Thanks 1
Cathy554
(2x+1) ( au carré) - 4 ( au carré). C'est une identité remarquable a ( au carré) - b ( au carré ) donc ensuite ( ( 2x+1)-4) * ((2x+1)+ 4 ) et donc la tu calcules et cela fait ( 2x-3) * ( 2x+5)
1 votes
Thanks 1
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Lista de comentários
(2x+1)²-16= ((2x+1)-4) ((2x+1) +4)
= ( 2x +1-4)(2x+1+4)
= (2x -3)(2x +5)
Rappel:
A² -B² = (A-B) (A+B)