Does anyone know the steps for number 44? I keep getting one instead of proving the identity.

  lol

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?

there is no following? ! lol

the answer is 52 if adding

the answer is 26 if dividing by 2

the answer is 676 if multiplying