How did the black death spread from asia to europe? rats traveled with traders along the silk road and carried the fleas to infect people. italian traders in kaffa brought the disease to europe after the mongols infected kaffa. all of the above

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 answer is