In order to be considered a civilization, a society must:

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

the confederate at bull run

b europeans take corn to africa. corn becomes an important crop there.

can you list the answers so i can answer the question