Question

NO WRONG ANSWER IT WILL REPORTED

ANSWER BOTH QUESTIONS​

Answer 1

1- b2 , c

2- 3,b,-,7,b

3- -

4-x,y,z

1- 2x=x,y=3y,xy2=3xy2

2-a2=3a2,5c2=c2,2b=b

3-a2b=7a2b,ab2=7ab2,1by2a=9a,

there is a 6b but no like term