Y = 9(x – 8)2 + 17
Standard form

I think that the answer would be y=18x−127

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

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?