What are three reasons the chinese cultural revolution happened

China's Cultural Revolution, whose leader was Mao Zedong (the Chairman of the Communist Party of China), had roots in 1958-61 Great Leap Forward.  It has three main reasons:

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