Răspuns :
a) 50a-25a= 25a(2-1)=25a........ b) 3x+5x-2x=x(3+5-2)=6x.......... c) 12a-16b= 4(3a-4b)
a)50a-25a=
25(2a-a)=
25*a
b)3x+5x-2x=
x(3+5-2)=
x*(8-2)=
x*6 sau 6x
c)12a-16b=
4(3a-4b)
25(2a-a)=
25*a
b)3x+5x-2x=
x(3+5-2)=
x*(8-2)=
x*6 sau 6x
c)12a-16b=
4(3a-4b)