Question

simplify (4n(n+1)(2n+1)/6)+n

Answer 1

you may use foil method on (n+1)(2n+1) first.

Answer 2

Check it once more...

Answer 3

(4(2n^2+3n+1)/6)+n

Answer 4

4??

or 4n???

Answer 5

It is 4n outside the brackets:

You have only solved for (n+1)(2n+1)

Answer 6

(4(2n^2+3n+1)/6)+n wrong..

it is 4n outside..

Yes or no??

Answer 7

See go step by step tell me what do you get:

(n+1)(2n+1) = ??

Solve this first..

Answer 8

2n^2+3n+1

Answer 9

Yes...

Now do this:

\(4n(2n^2 + 3n + 1)\) = ??

Answer 10

You are right don't mind..
My mind is mad..

Answer 11

Yes you are right dear...
Now solve that what I have written there..

Answer 12

8n^3+12n^2+4n

Answer 13

Yes so 4n not 4..

now write the entire what you get..

Answer 14

can I write that as (8n^3/6)+(12n^2/6)+(4n/6)

Answer 15

\[\frac{8n^3 + 12n^2 + 4n}{6} + n \implies \frac{8n^3 + 12n^2 + 4n + 6n}{6}\]

Solve this..

Answer 16

Are you getting this step???


You can also write what you did above that is also correct..

It is all about taking the LCD..

Answer 17

right

Answer 18

(4n^3/)3+(2n^2)+(5n/3)

Answer 19

Absolutely right dear...

Answer 20

Or you can leave the result as such like this there is nothing wrong in this:

\[\implies \frac{8n^3 + 12n^2 + 10n}{6} \implies \frac{2n^3 + 6n^2 + 5n}{3}\]

Answer 21

thanks