225k views
4 votes
. Find the sum of the following polynomials.

1. 10mn and -15mn ____________________________________________
2. -7a
2
and -8a
2
____________________________________________
3. 6(x+3) and -7(x+3) ____________________________________________
4.
1
4
ab and -
1
4
ab ____________________________________________
5. 0.5 xyz and 1.5 xyz

User Sivanesh S
by
4.1k points

1 Answer

5 votes

Answer ad Step-by-step explanation:

1. Adding 10mn and -15mn.

10mn + -15mn = -5mn.

2. Adding
-7a^(2) and
-8a^(2).


-7a^(2) + -8a^(2) = -15a^(2).

3. Adding 6(x + 3) and -7(x + 3).

6x + 18 + -7x - 21

x - 3.

4. Adding ?

5. Adding 0.5xyz and 1.5 xyz.

0.5xyz + 1.5xyz = 2xyz.

#teamtrees #PAW (Plant And Water)

User Arthur Kushman
by
4.6k points