What has happened in picher, oklahoma, to make it the largest superfund site in the united states?

d

explanation:

i think that this is the best answer, but im sorry if this is wrong

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