bonsoir
(x-7)² - 16 = ( x - 7 - 4 ) ( x - 7 + 4 ) = ( x - 11 ) ( x - 3 )
(2x - 3)² - (x + 8)² = ( 2 x - 3 + x + 8 ) ( 2 x - 3 - x - 8) = ( 3 x + 5 ) ( x - 11 )
y² - (y + 4)² = ( y + y + 4 ) ( y - y - 4 ) = - 4 ( 2 y + 4 )
(2x+5) + (x - 9)(2x + 5) = ( 2 x + 5 ) ( x - 9 + 1 ) = ( 2 x + 5 ) ( x - 8 )
x² + 6x + 9 = ( x + 3 )²
comprends pas la fin, manque des ²
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Verified answer
bonsoir
(x-7)² - 16 = ( x - 7 - 4 ) ( x - 7 + 4 ) = ( x - 11 ) ( x - 3 )
(2x - 3)² - (x + 8)² = ( 2 x - 3 + x + 8 ) ( 2 x - 3 - x - 8) = ( 3 x + 5 ) ( x - 11 )
y² - (y + 4)² = ( y + y + 4 ) ( y - y - 4 ) = - 4 ( 2 y + 4 )
(2x+5) + (x - 9)(2x + 5) = ( 2 x + 5 ) ( x - 9 + 1 ) = ( 2 x + 5 ) ( x - 8 )
x² + 6x + 9 = ( x + 3 )²
comprends pas la fin, manque des ²