Why does arjuna believe it is wrong to kill members of his family

which time period is this? or is this story fictional, i'm going to need more info to answer this question

answer

explanation

the given equation is

we can rewrite this as:

let

then the equation becomes:

the factors of 8 that sum up to -9 are {-1,-8}

we split the middle term with these factors to obtain,

we factor by grouping to obtain:

apply the zero product property to get:

but