(6n to 5th power + 8n squared + 10) - (2n squared + 9n to 5th power + 18) + (n to 6th power + 20)?

Question

the possible answers are n to 6th power - 3n to 5th power + 6n squared + 12, 15n to 7th power, nto 6th power - 3n to 5th power + 17n squared + 48, or n to 6th power - 3n to 5th power + 6n squared +48. I know this sounds difficult; but I am typing and it is hard to take a number to a certain power. I am not sure what key to hit. If there is any answer to this problem and if anyone can help me with squaring on a computer or to a certain power, I would appreciate it. Thank you

Answer 1

Original problem:
6n^5 + 8n^2 + 10 - (2n^2 + 9n^5 + 18) + n^6 + 20

Distribute the "minus"
6n^5 + 8n^2 + 10 - 2n^2 - 9n^5 - 18 + n^6 + 20

Combine like terms:
n^6 - 3n^5 + 6n^2 + 12

Answer 2

(6n^5 + 8n^2 + 10) - (2n^2 + 9n^5 + 18) + n^6 + 20 =
= 6n^5 + 8n^2 + 10 - 2n^2 - 9n^5 - 18 + n^6 + 20 =
= n^6 - 3n^5 + 6n^2 + 12

Answer 3

I'm not sure the answer, but if you want to put a number to a certain power, use "^".

ex. 6n^5 + 8n^10

hope this helps!

Answer 4

9n - 5 = 6n + 10 -6n -6n **SUBTRACT 6n FROM the two factors _______________ 3n - 5 = 10 +5 +5 **upload 5 TO the two factors _______________ 3n = 15 3n/3 = 15/3 ***DIVIDE via 3 ___________ n = 5