What was the main effect of the improvements in military technology during world war 1?

New Weapons

Explanation:

Artillery - Large guns, called artillery, were improved during World War I including anti-aircraft guns to shoot down enemy planes. The majority of the casualties in the war were inflicted using artillery.

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