4. Explain the causes of the American entrance into World War I.

Zimmermann telegram- Nothing like negotiating with a neighbor to invade their front lawn.

Unrestricted submarine warfare- Sinking ships owned by the US constantly is already making us angry.

and the sinking of the Lusitania- Now this wasn't the final straw but it did indeed shake US support for Germany and caused outrage all over the USA.

The U.S. entered World War 1 because Germany embarked on a deadly gamble. Germany sank many American merchant ships around the British Isles which prompted the American entry into the war

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

a. "how old man winter was driven back” and “ormuzd and arimanes"