Why do you think Europeans were “stunned” when they saw America’s technology on display at the Crystal Exhibit in 1851?

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

b or c im pretty sure

because people what other people gold

explanation:

the answer is c, all the other options are things they are known for.

hope this ☺️