Answer:
it is 4xy-4y^2+16x-16y
Step-by-step explanation:
My method is to "square them"
2x. -2y.
2y
8
2x * 2y
2x * 8
-2y*2y
-2y * 8
and add all the products together
You are able to express numbers in like halves
Answer: 75 degrees on the other two angles because all of the angles added together should be 180. So if you do 180-30 then divide that by 2 you get the other two angles.
Step-by-step explanation:
So now its

but you want it in y=mx+b so
add x to both sides so that you have y on its own
so now it's
It’s finding the area but with more numbers so start from the bottom and work your way up