Bonjour ! J aurais besoin d aide pour les exos 59 et 60 ! Merci d avance .... Pergunta de ideia deJaimelechocolat

Jaimelechocolat @Jaimelechocolat

April 2019 1 55 Report

Bonjour ! J aurais besoin d aide pour les exos 59 et 60 ! Merci d avance ....

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31Carla13 59) a. 49x^2 - 9 = (7x+3)(7x-3)
b. x^2 + 10x + 25 = (x+5)^2
c. (576/49)^2 - 42x + 49 = ((24/7)x - 7)^2
d. x^2 - 16x + 64 = (x - 8)^2

60) a. E = 9 - (2x-1)^2
= 9 -(4x^2 - 4x + 1)
= -4x^2 + 4x + 8

b. E = -4x^2 + 4x + 8
= -2(2x^2 - 2x - 4)

E(1/3) = -4(1/3)^2 + 4(1/3) + 8 = -4/9 + 12/9 + 72/9 = 80/9

Voilà :) J'espère t'avoir aidé !

1 votes Thanks 1

Jaimelechocolat merci beaucoup :) !!

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Bonjour, DM svt svp besoin d aide

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