8n^2-3n+10 + -3n^2-6n-7
8n^2 + -3n^2 = 5n^2
-3n + -6n = -9n
10 + -7 = 3
Put them all together and you get 5n^2-9n+3
I tried to space them out so that it makes more sense.
Answer:
Answer is 
Step-by-step explanation:
It is 29 in place of 27 . and Its a geometric series with first term 27 and common ratio 
and general formula for given sequence is given by 
so plugging the value of a and r ,we get
)^{n-1}[/tex]


Answer: 3x-7y
Step-by-step explanation:
9x-6x=3x you can't do anything with the y
The absolute value makes the -8 into a positive 8, then you subtract the 8 on both sides, giving you your answer 7. (Since 15-8=7)