Question

y^2 - 8y +15

Answer 1

what do you want to do with it? there's alot of possible things i could do with this.

Answer 2

it is basically factorisation.
\[y^2 -8y+15\]
you have look for two numbers that multiply to get 15cand add to get -8
so, -3 and -5

so, you put it in brackets as (y-5)(y-3)

to make sure, just expand the bracket.

Answer 3

\[(y-5)(y-3)\] is your answer

Answer 4

do you understand?

Answer 5

Yes oops sorry I forgot to put "factor" with the question, but yes I do thank you =)