How does the FED solve recessions in the United States

i need to see the answer to answer the 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

not all were fit for battle and were weak.

where is the passage?