Bonjour,
a. 7(3x + 1) - 4x(3x + 1) = (3x+1)(7-4x)
b. 5(7-4x) +7(3x + 1) - 4x(3x + 1)
=5(7-4x)+(3x+1)(7-4x)
=(7-4x)(5+1+3x)
=(7-4x)(6+3x)
=3(x+2)(-4x+7)
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Bonjour,
a. 7(3x + 1) - 4x(3x + 1) = (3x+1)(7-4x)
b. 5(7-4x) +7(3x + 1) - 4x(3x + 1)
=5(7-4x)+(3x+1)(7-4x)
=(7-4x)(5+1+3x)
=(7-4x)(6+3x)
=3(x+2)(-4x+7)