Have i done this correctly

Original post by junayd1998

Yes, but you're notation is a bit wrong, first line in red. Drop the sigma and just write

a_1 +a_2 + a_3

You're answers are fine. Also, for future reference, when you have

6k^2 +8k+2 = 0

you can divide through by 2, so that

3k^2 +4k + 1 = 0

it might be easier to factorise.

(edited 7 years ago)

Original post by NotNotBatman

Yes, but you're notation is a bit wrong, first line in red. Drop the sigma and just write

a_1 +a_2 + a_3

You're answers are fine.

oh alright. Thank you.

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