Which of the following best describes Thomas Edison? Edison improved on Samuel Morse’s invention.
Edison was responsible for over a thousand patents.
Edison created the first set of interchangeable parts.
Edison invented the telegraph and the telephone

I think it is b

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