bonjour
F (x) = 2 x² - 12 x + x - 6 = 2 x² - 11 x - 6
G (x) = - 4 x² + 12 x - 5 x + 15 - 8 x² - 4 x
= - 12 x² + 3 x + 15
H (x ) = 2 x - 6 + 4 x² + x - 4 x - 1
= 4 x² - x - 7
I (x) = 7 x² + 14 x - 2 x - 4 - ( 9 x - 3 x² + 3 - x )
= 7 x² + 12 x - 4 - 9 x + 3 x² - x + x
= 10 x² + 3 x - 4
J (x ) = ( x² + 2 x + x + 2 ) ( x + 3 )
= ( x² + 3 x + 2 ) ( x + 3 )
= x ³ + 3 x² + 3 x² + 9 x + 2 x + 6
= x ³ + 6 x² + 11 x + 6
Réponse :
Salut ,
F=(2x+1)(X-6)
F=2x²-12x+X-6
F=2X²-11x-6
G=(-4x-5)(X-3)-4x(2X+1)
G=-4X²+12X-5X+15-8X²-4X
G=-12X²+3X+15
H=2(X-3)+(X-1)(4X+1)
H=2x-6+4X²+X-4X-1
H=-X-7+4X²
H=4X²-X-7
I=(7X-2)(X+2)-(3X+1)(3-X)
I=7X²+14X-2X-4-(8X-3X²+3)
I=7X²+14X-2X-4-8X+3X²-3
I=10X²+4X-7
J=(X+1)(X+2)(X+3)
J=(X²+3X+2)*(X+3)
J=+3x²+3x²+9X+2X+6
J=+6X²+11X+6
Courage !
Explications étape par étape :
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bonjour
F (x) = 2 x² - 12 x + x - 6 = 2 x² - 11 x - 6
G (x) = - 4 x² + 12 x - 5 x + 15 - 8 x² - 4 x
= - 12 x² + 3 x + 15
H (x ) = 2 x - 6 + 4 x² + x - 4 x - 1
= 4 x² - x - 7
I (x) = 7 x² + 14 x - 2 x - 4 - ( 9 x - 3 x² + 3 - x )
= 7 x² + 12 x - 4 - 9 x + 3 x² - x + x
= 10 x² + 3 x - 4
J (x ) = ( x² + 2 x + x + 2 ) ( x + 3 )
= ( x² + 3 x + 2 ) ( x + 3 )
= x ³ + 3 x² + 3 x² + 9 x + 2 x + 6
= x ³ + 6 x² + 11 x + 6
Réponse :
Salut ,
F=(2x+1)(X-6)
F=2x²-12x+X-6
F=2X²-11x-6
G=(-4x-5)(X-3)-4x(2X+1)
G=-4X²+12X-5X+15-8X²-4X
G=-12X²+3X+15
H=2(X-3)+(X-1)(4X+1)
H=2x-6+4X²+X-4X-1
H=-X-7+4X²
H=4X²-X-7
I=(7X-2)(X+2)-(3X+1)(3-X)
I=7X²+14X-2X-4-(8X-3X²+3)
I=7X²+14X-2X-4-8X+3X²-3
I=10X²+4X-7
J=(X+1)(X+2)(X+3)
J=(X²+3X+2)*(X+3)
J=+3x²+3x²+9X+2X+6
J=+6X²+11X+6
Courage !
Explications étape par étape :