Solving an Algebra problem

[papatutor]

For all numbers x and y, let x delta y be defined as x delta y = x squared + xy + y squared. What is the value of (3 delta 1) delta 1? I don't have a math keyboard so spelled out the symbols delta and a square function. There is a numeric solution I can't figure out.

 

[Deleted member 4993]

For all numbers x and y, let x delta y be defined as x delta y = x squared + xy + y squared. What is the value of (3 delta 1) delta 1? I don't have a math keyboard so spelled out the symbols delta and a square function. There is a numeric solution I can't figure out.

First find the value of (3 delta 1).

(3 delta 1) = 3[sup:3ptz89ri]2[/sup:3ptz89ri] + 3*1 + 1[sup:3ptz89ri]2[/sup:3ptz89ri] = 13

Now find 13 delta 1.