Bonjour à tous, j'hésite sur ce calcul pouvez vous m'aider ?
B=4(1/2y-1)^-(y-4)(y+4)

By: USER7771
28 Agustus 2025 mathematiques 5 minutes
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Question

Grade: Education Subject: mathematiques
Bonjour à tous, j'hésite sur ce calcul pouvez vous m'aider ?
B=4(1/2y-1)^-(y-4)(y+4)
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Answer (90)

Best Answer
(105)
bonjour,

4(y²/4-2y/2+1)-(y²-16) =
4y²-4y+4-y²+16 =
-4y+20 =
-4(y+5)

Answered on 28 Agustus 2025
(130)
bonjour

B=4(1/2y-1)²-(y-4)(y+4)
b = 4( 1/4y² -y +1) -(y²-16)
b = y²-4y+4 -y²+16
b= -4y +20
Answered on 28 Agustus 2025

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