Answer:
4n^3 +n +7
Step-by-step explanation:
(5n^3+7n+2)+(-n^3-6n+5)
I like to line them up vertically
5n^3+7n+2
-n^3 -6n+5
-----------------------
4n^3 +n +7
Answer:
[tex]\boxed{\bold{4n^3+n+7}}[/tex]
Step By Step Explanation:
Remove Parenthesis: (a) = a
[tex]\bold{5n^3+7n+2-n^3-6n+5}[/tex]
Group Like Terms
[tex]\bold{5n^3-n^3+7n-6n+2+5}[/tex]
Combine Similar Elements: [tex]\bold{7n-6n=n}[/tex]
[tex]\bold{5n^3-n^3+n+2+5}[/tex]
Combine Similar Elements: [tex]\bold{5n^3-n^3=4n^3}[/tex]
[tex]\bold{4n^3+n+2+5}[/tex]
Add: [tex]\bold{2+5=7}[/tex]
[tex]\bold{4n^3+n+7}[/tex]
➤ [tex]\boxed{\bold{Mordancy}}[/tex]
