Relie chaque expression à sa forme reduite :
7x +3 ♦ ♦ 21x
7x+3x ♦ ♦10x
7x-3x ♦ ♦7x+3
7x *3 ♦ ♦25x
5x+5x ♦ ♦21x²
7x*3x ♦ ♦4x
Help please!
7x +3 ♦ ♦ 21x
7x+3x ♦ ♦10x
7x-3x ♦ ♦7x+3
7x *3 ♦ ♦25x
5x+5x ♦ ♦21x²
7x*3x ♦ ♦4x
Help please!