Which expression is equvialent to (2x^2+4x-7)(x-3)

David must install fencing around a lot that is shaped like a right angle. the side of lot that runs east-west is 200 ft long. the side of the lot runs north-south is 125 ft long. calculate how many feet of fencing he will need to surround the entire lot.

What is the quadric regression equation that fits these data

Ineed i been stuck on this question since yesterday