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Stuart
@Stuart
April 2019
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Developper (5x+4)² et (x-6)(1-2x)
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TurtleMaster
Verified answer
(5x + 4)² = (5x + 4) (5x + 4)
(5x + 4)² = 25x² + 20x + 20x + 16
(5x + 4)² = 25x² + 40x + 16
(x - 6) (1 - 2x) = x - 2x² - 6 + 12x
(x - 6) (1 - 2x) = -2x² + 13x - 6
En espérant t'avoir aidé
1 votes
Thanks 2
Commentaires
(5x+4)^
= (5x)^ + 4^ + 2 × 5x × 4
= 25x^ + 16 + 40x .
(x-6) (1-2x)
= x - 2x^ - 6 + 12x
= -2x^ + 13x -6 .
** ^ ça veut dire au carré !!
0 votes
Thanks 2
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Lista de comentários
Verified answer
(5x + 4)² = (5x + 4) (5x + 4)(5x + 4)² = 25x² + 20x + 20x + 16
(5x + 4)² = 25x² + 40x + 16
(x - 6) (1 - 2x) = x - 2x² - 6 + 12x
(x - 6) (1 - 2x) = -2x² + 13x - 6
En espérant t'avoir aidé
= (5x)^ + 4^ + 2 × 5x × 4
= 25x^ + 16 + 40x .
(x-6) (1-2x)
= x - 2x^ - 6 + 12x
= -2x^ + 13x -6 .
** ^ ça veut dire au carré !!