bonjour
C = ( 15 x - 6 )² + ( 10 x - 4) ( 3 x + 2 )
a) ( 15 x - 6 )² = 225 x² - 180 x +36
9 ( 5 x - 2 )² = 9 ( 25 x² - 20 x +4 ) = 225 x² - 180 x + 36
C = 3 ( 5 x - 2 )² + 2 ( 5 x - 2 ) ( 3 x + 2 )
= ( 5 x - 2 ) ( 15 x - 6 + 6 x + 4 )
= ( 5 x - 2 ) ( 21 x - 2 )
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
bonjour
C = ( 15 x - 6 )² + ( 10 x - 4) ( 3 x + 2 )
a) ( 15 x - 6 )² = 225 x² - 180 x +36
9 ( 5 x - 2 )² = 9 ( 25 x² - 20 x +4 ) = 225 x² - 180 x + 36
C = 3 ( 5 x - 2 )² + 2 ( 5 x - 2 ) ( 3 x + 2 )
= ( 5 x - 2 ) ( 15 x - 6 + 6 x + 4 )
= ( 5 x - 2 ) ( 21 x - 2 )