The difference is 
Explanation:
The expression is 
Removing the parenthesis, we have,

Factoring the terms
and
, we get,

Taking LCM, we get,

Simplifying the numerator, we get,

Subtracting the numerator, we have,

Hence, the difference is 
Answer:
toooooooooooooooo hard
Step-by-step explanation:
so so sorry
The other angle should be 76 degrees since every quadrilateral has 360 degrees total with 4 angles. So if you add th numbers up and subtract it from 360, you woukd get 76 degrees.
You can find the slope using the following formula:
m=
Substitute the corresponding values into the equation.
m=
Simplify.
m=
m=-