bonjour,
je ne fais pas tout
A = 2 ( x + 3 ) ( 4 x + 2 ) + ( x + 3 )
A = ( 2 x + 6 ) ( 4 x + 2 ) + ( x + 3)
A = 8 x² + 4 x + 24 x + 12 + x + 3
A = 8 x² + 29 x + 15
a = ( x + 3 ) ( 8 x + 4 + 1 )
a = ( x + 3 ) ( 8 x + 5 )
pour x = 2
expression de départ = 2 ( 2 + 3 ) ( 8 + 2) + ( 2 + 3) = 2 * 5*10 + 5 = 105
expression développée = 8 * 2² + 29*2 + 15 = 32 + 58 +15 = 105
expression factorisée = ( 2 + 3 ) ( 16 + 5) = 5 * 21 = 105
B = ( 3 x + 4 ) ( 5 x - 2 ) - ( 20 x - 12 )
B = 15 x² - 6 x + 20 x - 8 - 20 x + 12
b = 15 x² - 6 x + 4
C = 4 - 3 x ( 2 - 5 x ) = 4 - 6 x + 15 x² = 15 x² - 6 x + 4
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
bonjour,
je ne fais pas tout
A = 2 ( x + 3 ) ( 4 x + 2 ) + ( x + 3 )
A = ( 2 x + 6 ) ( 4 x + 2 ) + ( x + 3)
A = 8 x² + 4 x + 24 x + 12 + x + 3
A = 8 x² + 29 x + 15
a = ( x + 3 ) ( 8 x + 4 + 1 )
a = ( x + 3 ) ( 8 x + 5 )
pour x = 2
expression de départ = 2 ( 2 + 3 ) ( 8 + 2) + ( 2 + 3) = 2 * 5*10 + 5 = 105
expression développée = 8 * 2² + 29*2 + 15 = 32 + 58 +15 = 105
expression factorisée = ( 2 + 3 ) ( 16 + 5) = 5 * 21 = 105
B = ( 3 x + 4 ) ( 5 x - 2 ) - ( 20 x - 12 )
B = 15 x² - 6 x + 20 x - 8 - 20 x + 12
b = 15 x² - 6 x + 4
C = 4 - 3 x ( 2 - 5 x ) = 4 - 6 x + 15 x² = 15 x² - 6 x + 4