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Eessteellee
@Eessteellee
April 2019
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Aidez moi Svp c pour demain et je comprend rien !!!!
Alor : Développer les deux expressions suivantes:
A=(6-x)au carré
B=(6-x)(4-x)
Ensuite: Donner l'écriture développer et réduite de:
E=(6-x)au carré -(6-x)(4-x)+2(36-x au carré)
Puis factoriser E
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nonotata
Verified answer
A =(6-x)²
a = 36 -12x +x²
a =x²-12x+36
b=(6-x)(4-x)
b = 24 -6x-4x+x²
b = x² -10x +24
e =(6-x)² -(6-x)(4-x) +2(36-x²)
e= x²-12x+36 -(x²-10x+24) +72 -2x²
e = x²-12x+36 -x²+10x-24 +72-2x²
e = -2x² -2x +84
factoriser
e =(6-x)² -(6-x)(4-x)+2(36-x²)
e =(6-x)² -(6-x)(4-x) +2 (6-x)(6+x)
e = (6-x)(6-x -4+x+12+2x)
'e =(6-x)(2x+14)
e = 2(6-x)(x+7)
1 votes
Thanks 1
maudmarine
Développer les expressions suivantes
:
A = (6 - x)²
A = 36 -12x + x²
A = x² - 12x + 36
B = (6 - x) (4 - x)
B = 24 - 6x - 4x + x²
B = x² - 6x - 4x + 24
B = x² - 10x + 24
Donner l'écriture développée et réduite de
:
E = (6 - x)² - (6 - x) (4 - x) + 2 (36 - x²)
E = 36 - 12x + x² - (24 - 6x - 4x + x²) + 72 - 2x²
E = 36 - 12x + x² - 24 + 6x + 4x - x² + 72 - 2x²
E = x² - x² - 2x² - 12x + 6x + 4x + 36 + 72 - 24
E = - 2x² - 2x + 84
Factoriser E
:
E = (6 - x)² - (6 - x) (4 - x) + 2 ( 36 - x²)
E = (6 - x)² - (6 - x) (4 - x) + 2 (6 - x) (6 + x)
E = (6 - x) (6 - x - 4 + x + 12 + 2x)
E = (6 - x) (- x + x + 2x + 6 + 12 - 4)
E = (6 - x) (2x + 14)
E = 2 (6 - x) (x + 7)
1 votes
Thanks 2
eessteellee
mrc bcp
maudmarine
De rien :)
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S'il vous plait c pour demain et je ne comprend pas pouvez vousv m'aidez c'est urgent !!!!!! l'exercice es ci dessous merci d'avance
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Verified answer
A =(6-x)²a = 36 -12x +x²
a =x²-12x+36
b=(6-x)(4-x)
b = 24 -6x-4x+x²
b = x² -10x +24
e =(6-x)² -(6-x)(4-x) +2(36-x²)
e= x²-12x+36 -(x²-10x+24) +72 -2x²
e = x²-12x+36 -x²+10x-24 +72-2x²
e = -2x² -2x +84
factoriser
e =(6-x)² -(6-x)(4-x)+2(36-x²)
e =(6-x)² -(6-x)(4-x) +2 (6-x)(6+x)
e = (6-x)(6-x -4+x+12+2x)
'e =(6-x)(2x+14)
e = 2(6-x)(x+7)
A = (6 - x)²
A = 36 -12x + x²
A = x² - 12x + 36
B = (6 - x) (4 - x)
B = 24 - 6x - 4x + x²
B = x² - 6x - 4x + 24
B = x² - 10x + 24
Donner l'écriture développée et réduite de :
E = (6 - x)² - (6 - x) (4 - x) + 2 (36 - x²)
E = 36 - 12x + x² - (24 - 6x - 4x + x²) + 72 - 2x²
E = 36 - 12x + x² - 24 + 6x + 4x - x² + 72 - 2x²
E = x² - x² - 2x² - 12x + 6x + 4x + 36 + 72 - 24
E = - 2x² - 2x + 84
Factoriser E :
E = (6 - x)² - (6 - x) (4 - x) + 2 ( 36 - x²)
E = (6 - x)² - (6 - x) (4 - x) + 2 (6 - x) (6 + x)
E = (6 - x) (6 - x - 4 + x + 12 + 2x)
E = (6 - x) (- x + x + 2x + 6 + 12 - 4)
E = (6 - x) (2x + 14)
E = 2 (6 - x) (x + 7)