A warehouse platform is 10 meters long and 3 meters wide. The platform is going to be enlarged by adding a strip of uniform width to all sides. How wide should the strip be, in order to double to the area of the platform?

what

this is a good question! i'll do some research and come back when i have the answer!

answers

\3. yes the presentation (i.e. odd numbers being written as differences of two squares) is possible for all odd natural number however the presentation may not be unique. for example,  57=112−82=292−28257=112−82=292−282.

\4. 2 can't be written as a difference of two squares because 4-1=3 and 1-1=0 and the difference of squares grows to integers larger that 3.

can i get some in proving questions 1 and 2?