Use vertical format to add or subtract...?

Question

1) (2m-8m^2 -3)+ (m^2+ 5m)


2) (8y^2+ 2)+ (5-3y^2)




^2= squared...

Please include the steps.. i really dont get these problems so i need to figure them out by the steps!
hope u can help and thank you! <3

Answer 1

I am only answering because I share your pain!

Let's see. I start by rewriting each paranthetical in descending order of the variable.
- 8m ^2 +2m -3 combined with (plus)
+1m ^2 +5m 0
_________________________
-7m ^2 +7 -3

And the second:
+8y^2 +2 combined with (plus)
-3y^2 +5
____________

+5y^2 +7


BUT I sure do hope a math person comes along...